Yeah I still use Sindel occasionally. In fact if im getting too pissed off with a SZ player, I bust her out because he still struggles against her even with his armoured ex slide. He cannot play that ice clone shit with her, not when she can comfortably sit across the other side and just zone him out, plus she has a low projectile to stop him sliding. This means HE has to rush her down, HE has to potentially use a bar. I mean if he ex slides, you block, you can just 44U3>>air fireball. This punishes him for something like 24% AND knocks him back to the other side of the screen.
Sindel in so far as a pure zoner is still one of the best. She struggles in some departments, like it is hard to get people off when you're being pressured. She doesn't have good AA's like others and she doesn't have an armour move.
That said, even though she is a zoner, she still has decent close combat game and some nice mixups.
Im not sure if some characters should adhere to a certain play style. I play this game quite aggressively, so even with Sindel I liked rushing down. Some people might say "you should just use her to zone", and I can see why this can be applied to some characters. For instance, you dont pick Cage or Baraka and then play the zoning game. But that shouldn't mean you cant zone with them.
For instance, Baraka and Cage are far superior to her up close, but she is superior to them in zoning. But i'd argue that because her close combat is decent, it's not a bad idea to rush down with her sometimes, where as no one expects a Baraka or a Cage to zone (as it would not be a great thing to do), so from that perspective, it could be argued that she is a more versatile character then those two.
Sindel is capable of good damage.
Jp, B3F2, scream, jp, B3F2, D4>>Hair grab.... 41%. 40% if you opt for her cartwheel instead of hair toss. Not bad for someone for a midscreen meterless combo, huh?
I find X Rays "almost" a waste in this game. Some characters have good scaling damage X Rays like CSZ or NW...but others its a waste. SIndels X Ray does 28 or 29%. However TWO low Ex fireballs do 30% combined and knock down (15% each on hit).