The team working on it are a bit over their heads. Rather than doing a few things really well they tried doing everything and it all ends up being mediocre.
The problem is consistency.
I wish them luck, maybe in 5 years this plugin is going to be amazing. For now I'm just giving up. I'm tired of searching through templates. I'm just tired of all the half-done wordpress ecommerce plugins. I went back to selling on ebay. Yeah I'm losing $2.48 on each sale from fees. But at least I can sell something without worry.
I'm not going to go into more detail, I've wasted enough time. Look at the 1 star reviews and decide for yourself.