WordPress.org

Worked well for my online store.
Had some quirks but was good overall.

Great plugin if all you know is clicking, but if you are coder this crap will melt you brain. Short description from developer way for this plugin would be. This monkey is not required in here, but i'll put it anyway let it take shit and mess everything.

Purchased plugin and waited 3 days for electronic delivery. Never delivered, and we had to move on and get a different plugin.

Now, will not return payment. I have been waiting over a month, and now they will not answer emails.

Beware.

The first one and so far the most advanced e-commerce plugin

The external shipping interface would not work. Customers could charge themselves shipping for one state and get it shipped to another. Support was non-existent. If they had fixed these features, I would have been happy to use this plugin. I went with cart66.

I am using WPEC on more oand more of the WordPress sites I manage and my clients are happy with the functionality and the ease of use.

The 5th star is for the superb support I received to get the DPS payment gateway working smoothly on my server hosting.

The work required to keep plugins up to date cannot be under estimated and this is another reason I support the teams that stay with their product year in and year out.

I've been using WP e-Commerce for a couple of years... at first, because it was the only solution that integrated with WordPress in any meaningful and easy-to-use way.

Unfortunately, this plugin id a developer's worst nightmare. Unbelievable amounts of presentational code that should have been made customizable via template files is instead hard-coded into the core. That's right... if you want to modify basic features like "Customers Also Purchased" templates... you have modify WP eCommerce's CORE. Have fun upgrading that in the future. Unfortunately, that's a common theme here - almost every part of this plugin is programmed in the most haphazard, poorly considered way imaginable.

The way this package handles of digital downloads is a disaster. Let me explain...

Adding digital products is pretty straightforward initially... you add files by uploading them to a specific folder on the server, then, when you attach the files to a particular product, a new post is created in a hidden custom post type.

By itself, that's no issue... but this is where things start to really suck... every time you add a file to a product, even the same file over multiple products, a new post is created with a reference to the file on the server, leaving you with multiple file reference entries in the database. And more bizzarely, the post title is used for the file path while post content is not used - so you can't give files meaningful names nor can you manage your files in any reasonable manner other than by hand using a MySQL editor. So... you now have multiple posts referencing the same file... and those file-posts are linked to products using post_parent. Got it? Ok, brace yourself, this is where it gets messy...

If a customer buys a product that contains attached files, a guid is generated for each download link and a database record saved with a reference to the aforementioned non-public file-post in the database to obfuscate the files... BUT... if you ever remove a file from a product (i.e. you click the red X in the Edit Product screen), even accidentally, it permanently breaks every link for every existing purchase (of that file) in the database. If you add a new file to the product, WP eCommerce will not generate new links for existing customers... nor does it even provide an option for it... because in the database, download links and purchases/carts are entirely independent. Oh, and WP e-Commerce doesn't allow you create manual orders from the back-end if something gets screwed up (which is all too likely considering the mess that is the code base). Sure, there's a $50 add-on you can buy, but it's broken too, and requires substantial developer hacking to get working.

Do yourself a favor and avoid this disastrous software at all costs. Check out WooCommerce instead. While it's not perfect either (trust me, no ecommerce software is - and I have developed for all of them), it is much more admin-friendly, developer-friendly and FAR more well thought-out.

gotta say its pretty good..few bugs here and there but for a free plugin i say is the best out there
support is A+

Easy to use, integrates with wordpress, for a simple eCommerce store, this plugin is perfect!

Best of all, it is FREE.

This is a great plugin that can handle pretty much any e-commerce needs. It's simple enough for basic online payments yet full featured and extendable enough for complex e-commerce solutions.
With their first class support, it doesn't get much better.

As this was the first legitimate e-commerce plugin for WordPress, and one of the first commercial plugins, it was a pioneer in many areas. They've learned a lot of lessons over the years on their path to having a great e-commerce solution for WordPress.
It's free. Download it and try it out for yourself and you'll be the next person writing a 5 star review.