Does anyone have this Safety 1st Go Hybrid carseat that folds down and fits into a 14" x 14" for easy travel?

http://www.amazon.com/Safety-1st-Hybrid-Convertible-Booster/dp/B002UP391K

I need to get a 2nd convertible carseat for my husband's car and was looking at this one for everyday use and for travel purposes. If you have one or know someone who has one, is it comfortable and would you recommend it for a 20-month old?