Posting here, to get more feedback. Thanks.
Let me just say that we have a total of 4 car seats from Roundabout to Regent with Marathon and Decathlon in between. The kids are 3 and 5. I think it is time for Roundabout to go, and I would like to replace it with a booster of sorts for my 5 year old. I would like to have something that is not taking much space (I have a smaller car) and at the same time is safe and comfortable. Also, don't want to spend a TON on this, since we already paid lots of $ for these 4 seats. Of course, we use the seats a LOT, and will continue to do so.
So, I guess my question is, what is my next step in car-seat for a 5 year old.