I have a post below about the FP space saver high chair, but I am also considering the healthy care booster as well. If you have this chair, could you please comment on the following questions.
I have both the FP space saver AND the booster. We use the space saver most of the time, it stays set up in the corner of the kitchen, and DD eats dinner most nights before we do so I generally feed her there (in DC for other meals). The Healthy Care Booster is on our dining room chair for when she sits there with us on weekends, and for travel.
-do you like the chair and would you recommend it? Yes and yes! Straps easily on any chair, is sturdy, easy to clean, folds compactly for storage, great for travel or when she spends the day at her aunt's house and we want a real chair for her to sit in. Will also be a perfect booster seat once she gets a little older, and I want/need the high chair for LO2.
-approximately what ages can you use the chair with? We didn't get ours until she was like 9 months old, and she was fine in it then. I imagine anytime after you LO can sit up on their own unsupported.
-do you find it a con that the chair is not padded? No. DD doesn't sit in the chair for more than 15 minutes at a time (although once we took it for lunch with grandma and she amazingly sat nicely in the chair for over 45 minutes). In fact, its sort of a pro - the hard plastic makes it SUPER easy to clean!
-what cons do you find with the chair? I don't think I have any. Maybe if your LO is very wiggly and needs to be strapped down? Its only a 3 point harness, not a 5 point like most regular high chairs are. Its never been a problem for us, and the fact she can lean forward to reach for her cup or food on her own is a bonus.