The M&P line was introduced in the hopes of regaining the LE market share that was once owned by Smith & Wesson. Glock thru skillful marketing has a good 70% of the LE market, they practically give pistols to large departments. I've had 4 Glocks and well all were functional and reliable I always ended up trading them. I have 3 S&W M&Ps and feel they are better pistols and Smith is finally making inroads into the LE market with this line. To me they are more comfortable with their better interchangeable gripstraps and I like the design better with the internal sub frame. The only thing I've done to mine to make them better was the addition of Robars NP3 finish, something I highly recommend.