They had a rocky start with a barebones features on launch, horrible input lag and a small initial cast. But 3 seasons later, it has improved gameplay and single player features. The cast has a great selection of the classic characters from street fighter 2, alpha 3 and 4 return with their movesets creatively altered to give a fresh take on each character. This game also introduced a lot of new characters that each have really unique gameplay you've never seen in street fighter before.

The mechanics, while simplified compared to SF4, still offers enough degree of depth to keep the hardcore street fighter fans playing. The v skill/trigger/reversal system, reversed button priority, crush counters, removal of chip kills/non ex reversals/option selects/invincible backdashes may not sit well with some fans, but I like the reward it gives to more offensive gameplay. The gameplay is balanced once or twice a year, and at it's current state, it is the most balanced in any street fighter game so far. Still can be improved. For single player offerings, there are plenty: arcade, survival, combo challenges, 2 seperate story modes and vs CPU mode.
They've also improved the input lag recently, which is awesome.

However, the online netcode is still crappy with the one -sided rollback system. That's the biggest factor holding this game back. And the FM system to purchase costumes and characters are pretty bad. No amount of grinding will allow even the most dedicated player to get everything for free. Season 3 also sees the visual designs/animations of the current characters lack the polish it has for previous seasons. Also introduced is the Dojo. While it's a nice idea to have a clan concept in street fighter, it isn't implemented in a way that's useful. You gain nothing from joining a dojo currently, other than potentially winning a trophy to put in your dojo, which nobody cares about.

Overall though, a good fighting game which i currently enjoy playing. Will it be fondly remembered like the other street fighters like SF2 and 3rd strike? It remains to be seen..