If you complained, bitched & dropped Kasumi or Alpha because of what it takes to play, or if you struggled with either of them what they had in the neutral & block, then you're just going to be doing the EXACT same thing with Phase 4. I know that sounds messed up, but it's just the honest truth. HajinShinobi pretty much took the words out of my mouth, this is just a post that supports it. She's twice as unsafe, Kasumi's 3P (3PP) can be string delayed while Phase 4 has to commit to the string if block at -8. It's just used for a hit on stun.
You have to commit to 66K (whiff punisher) on block at -17, but can hit confirm the teleport of you land it. Kasumi can delay 66K, be safe at -3 with 66K~K, & use 66KK but it's -17 on block. So she (Kasumi) has it easier there. She is worse in the neutral game that what Kasumi is. H+K will play a huge role at -12 with good pushback. P, PP, 2P, 2K, those will also. 3P+KP is safe at -4, does a lot of knockback on hit, wallsplats & imo serves as a whiff punisher. I said from the beginning that they were not the same characters.
The positives that she has are that she has a great ceiling game since that 236T, 1T, & 46H exists. It works the same as Kasumi's as you have plenty of guaranteed follow ups even launchers, SSP is giving out guaranteed damage including 3PP+K, 6P, P+K, 6KK etc, so does 4P, great wall game getting 120+ damage, & very strong juggles. 6PKP+K is also guaranteed from 66T so you're getting a free juggle there.
She's not bad by any means. She's pretty exciting, but it's going to take someone who really wants to put the time & effort into her to bring out the beast that she can really be.