Very useful plugin, great support

We have been using this plugin to connect to Bulkgate for a few weeks now and have sent campaigns and standalone messages to user with a very high rate of delivery and a good return.
We had a small issue with a cancelled campaign, but support was exceptional and returned the credit in a few minutes after a call and check. Also, beware of links in messages, sometimes it reports a no-valid URL, but it works ok on the client side. We also chose non-unicode, as it makes for a longer (160 chars) single message body.

I strongly recommend this plugin for mass messaging and good delivery of marketing texts.