I had been looking to DIY a bimini for our tower but ended up finding this one on ebay (seller - Wakepros). I had this one shipped to my door for $200. It is very functional but probably not as sturdy or as clean on the fit and finish as the big name biminis. But then again it costs less than half of what they do. The canvas has velcro all around the outside edge, so when we trailer the boat I just undo the velcro and roll it to the front bimini bar then use ball bungees to secure it.
In the end I am very happy with it and would suggest it for those looking for a low priced bimini solution.