I just got the mount today and set everything up. Since this is my first time with a projector, I can't use previous mount experience as an example, but here is what I can say so far.
I bought my universal mount of a vendor on Ebay for much cheaper than anything else I saw. Once I got it I kind of just looked at all of the pieces a little confused because there were so damn many (a lot of them don't get used, they are just there to make sure their mount is truely universal). After figuring out how to set up this jigsaw, I will say that for the money, I am pleasantly suprised. I seems really sturdy and reliable and now I guess that only time will tell.