It really depends on which characters you're looking at. Some characters are able to mix and match for notably different gameplay styles and options for certain matchups (such as Baraka, Nightwolf, Scorpion, Sub, Noob, Lao, Kabal, and Shang). Others are pigonholed into utilizing their 3-4 useful variation specials as the rest are complete trash or way too niche to be worth the pick over their efficient options (such as Jade, Kotal, D'Vorah, Skarlet, Shao, and Jax).
Overall I think it's been a success. However, there had best be a follow-up balance patch that brings the shit variation moves in line so more characters get actual options.