Mongoose bikes may not be as good today as they were when I rode bmx but this is a solid product.  Easy enough to put on and take off that my son doesn't gripe.  It doesn't hurt that they actually look halfway cool too with the orange/black/chrome.  Seems like they'll last a while as size is a little large for him now (age 6) with room to grow because of adjustable velcro closure.  Reasonably priced and best of all, they appear to give him greater confidence.