Yeah, I really have to agree with getting one that fits on a normal chair. I have a Safety 1st one and have never regretted not getting a wheelie one. We have just started to use it without the tray for DD to sit at the table with us and she loves that. And I'm some sort of safety maniac and haven't ever felt anxious about not having the 5 pt harness.
And like Ezz said, so great for taking on holiday/to friend's house's etc.