Pros and cons...
... but fine overall.
The first problem I encountered was some damage on the package that got to one of the pieces. Luckily, it was the back of the trundle so the hole cannot be seen unless you pull it all outside, but I will still send a message to see if they can send a new piece.
The second issue is related with the size of the mattress used. It says it is ok for 7-10" twin mattresses but the truth is that a 7-8" will not be high enough to reach the lower side of the back piece leaving an ugly gap (and dangerous, a kid's arm could get stuck there). Even with covers. We are looking to buy a 10". On the other hand, the trundle does not open and close easily with a 9-10" mattress, you would need to lift the whole thing to get it in/out. So a 7-8" mattress is recommended here. Lengthwise, there is another gap on the upper since the structure is around 77" and twin mattresses are 75"... The trundle is a bit smaller so it is fine. By the way, no way to fit a twin XL on either.
The last con is about the height of the upper bed, do not even think about being able to sit on it like you would on a sofa unless your are 7' tall. 5'6" here has to leap awkwardly just to sit on the edge and we still have an 8" on top, once we have the 10" to cover the gap with the back piece, it is going to be funny.
But, even with these turndowns, we do like the daybed and it works for what we want (an alternative to a bunk bed that kids can use to sit and read too). The price is very competitive and Great Offer Stock often offers extra discounts, I have seen lower quality ones for much more. The fabric color is surprisingly accurate to the pictures, which is nice for huge items bought online (we got the beige).
I hope it helps!