I use to teach the P90 to the Ministry of Saudi National Guard for 4 yrs as a PMC. That sub machine gun is so ergonomic you can drive with one hand and shoot with the other on VIP missions. It’s so balanced and user friendly. Great gun.
Good for home defence. Baddies usually have Glocks with 15 - 20 rounds. You have 2 - 3 times that. The magazine change times are very similar ( unless they really practiced) you will be! ( 2 rounds down range, change mag, 2 rounds down range, repeat ) More accurate at 50m - 100m distance. With a 400m accurate reach.