I have a Legend 5-15X40 scope I just put on a .243 for varmints. I love it, it is extremely clear compared to a Banner 6-24X40 and a Banner 6-18X50 I have on 2 other varmint rifles. It is quicker to get your sight picture, and brighter at high magnifaction that my other 2. I like the mil-dot recticle also. Even though it's only 15X, the clarity of the optics makes it more usable than my 18X or 24X at the longer ranges. I plan to upgrade my 2 Banners either to Bushnell Elites, or 2 more Legends this fall as funds are available. I have not had an opportunity to look at a Mueller scope, so have no idea how they compare. I do know I can't tell a lot of difference looking through my Legend 5-15X and my brother's 5-15X Elite 3200, and I like the mil-dot recticle of the Legend better! I hope you have a retailer where you can compare the Mueller to other scopes, It would be nice to hear of a hands-on comaprison of them to Bushnell or others.
Hope this helps-