Was at the Outpost Gun Shop today in Marianna FL today and got to hold the Remington Shorty and I got to say I like the Mossberg way better.
My experience has been just the opposite. I actually purchased the Mossberg Shockwave and did not like it at all. I sold the Mossberg and bought the Remington TAC14 and I like it much better. I much prefer the location of the Remington's safety over the location of the Mossberg's safety. To me the Remington is a much more refined and smoother gun to shoot. I found the Mossberg to be a literal pain to shoot. The Remington is a pleasure to shoot.
Having actually owned both, I prefer the Remington over the Mossberg. I know most of the reviews prefer the Mossberg, but I'll take the Remington any day. Just my two cents worth in a twenty-five cent world.