This walmart bike has given me 200 plus miles on the road, some sands and gravel and light trails and I have tried it in a mountain bike trail (2-4 miles) with really steep climbs and dips with tight corners (it was a novice trail nonetheless) once. I plan to go back often
It goes without saying that I have done my homework and adjusted what needs to be adjusted and did some proper maintenance on it. The only thing I changed here is my saddle and a tire tube from the rear because of the flat. All of the components are still out of the box and they all held up pretty well.
I am not saying that I am not going to upgrade, but it's not anytime soon. I will use this bike for my commutes and errands and exercise as long as it holds up. I am still looking for a better bike, but for now this has served me well.