A while back, we had a picture of a WalMart assembly on here. I think they had the fork on backwards. Does anyone remember that and remember what thread it was in?I don't have an issue with it. Especially if you're in a small town. Like E-Dog said though, I wouldn't let them do the assembly.
Plus you still might not end up with a decent product. One of my local shops has a sign. Shop quality bikes have a warranty on repairs, including brands they don't sell. Department store bikes, they'll try to work on it, but no warranty and a deposit on repair is required.Everyone says don't trust the assembly and go take it to a local bike shop to have it gone over to make sure it is safe.
The cost of the Walmart bike plus the cost of the LBS going over it would be about the same as a low end one from the LBS why waste time and effort with the walmart bike in the first place. Save the effort and time and go to the LBS.