Congrats, I remember my first Glock, for some reason I now feel compelled to always own at least one Glock, right now I am at zero but plan on picking up a subcompact as soon as my funds allow.
My dad bought me a Glock 21 for my 21st birthday and 12 years later and countless rounds, it still shoots like new. Accurate and dependable. I have since bought 2 G27s for me and my wife and we love them too. The 27 is just right for her. I really want a subcompact .45 too. Good buy, and I am sure you will love it.