I bought 2 weeks ago, haven't had the chance to use it, yet. I'm hoping to do a full detail of my Charger on Monday, if everything goes as planned, I'll test out the Bissell on my floor mats. Actually, they only need to be vacuumed, since I cheat and use a set of clear vinyl mats on top of my carpeted mats, but if I have the time...
From what I've seen there is one model that has a weaker motor than the others. But, these are still intended for occasional use by the average housewife/husband, not a professional detail shop. So, the suction power will be very low compared to a professional model. From countless reviews I read before finally ordering one, the suction is fine for the average guy, but there will still be moisture left. Either left it air dry or use a towel/shopvac to remove more of the water before letting it air dry.