Instruct: Classify a given review into positive or negative sentiment.
Query: What a let down

I was so excited to see this new seat with the arm rest and swivel seat. I bought it for my 5 1/2 month old son who can sit up. However, when I take him out of the seat he gets huge red marks on his thighs because the leg openings aren't big enough. It is also impossible to clean his bottom because he is sitting. He can't play with his toys because he has to lean all the way over the seat and he can't reach anything. Plus in order to reach him I have to lean over the arm rest so I don't even use it. I thought I found the perfect solution, but it is going back!