Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
Purchased this for my 5 year old son so he would stop with the couch. The frame warps if you step on the side so it isn't level and flat and results in an unsafe surface to jump on. Also, one of the legs won't stay screwed. I think the leg is stripped and it came that way. I am now past the return policy so I can't return it.
I do like the jumping surface and the fact that it is springless. If it weren't for the frame issue I would have given 4 stars.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: E: very negative