I really like how easy and effective the A/B test creation looks from the demo video. I would definitely sign up if they had a permanent cheap 1000 visitor per month plan. I don't need a ten thousand visitor a month plan, and my startup can't afford a $49/month recurring fee. (Yet.)

Then again, if I really want A/B testing I should just code it myself. The advantage to using this system would be its ease of use.