I roll my eyes a little bit every time the gun industry tells me I have to drop a full-size auto for any reason. A full-size has more weight, which lends to controllability, and a better sight radius, which lends to accuracy. When you are betting your life on it, you should give yourself every possible advantage. I never found that a mid-size auto was any more comfortable in the waistband than a full-size.
Get one if you want one, especially if it works for you, but while I am still a starving student, I won't be buying any guns for comfort or aesthetics. Rather than buying guns to fill every niche, I try to get one that does everything well.