Going to expand on my thoughts. Preface: I love Star Wars, in the last 12 months I've watched every TV show and film of canon in chronological order (from EP1 -> EP9 and everything in between) except Resistance, I watched Clone Wars x2 and Rebels 1.5x - I watched Clone Wars and the 'Ahsoka' Rebels episodes right before Ahsoka came out. Ahsoka is in my top 5 characters across all of Star Wars.
Overall, it was okay. As far as live action TV shows go I'd rate it higher than Boba Fett & Obi Wan, maybe higher than Mandolorian S3, but behind Mando S1/S2 & Andor. I had high expectations going in given my appreciation for the character Ahsoka and the TV show Rebels. It was kind of like Obi Wan in that sense, a very popular titular character so the expectations are naturally high. The underlying problem for me is that Dave Filoni can't write or direct live action. It was all a bit of a mess in the end. There are so many pointless silences and characters brooding throughout the show without any meaning behind them.
The characters are bland, wooden and largely devoid of personality. First up, he's taken Ahsoka - one of the most emotional and lively characters in Star Wars - and made her boring. Now there's a lot of nonsense about 'trauma' but trauma doesn't mean you literally can't speak properly. In the first few episodes she had all these awkward pauses and delivery of lines; it's bizarre. He was going for some older, wise, stoic traumatised Jedi trope that just doesn't work with her, the essence of what makes her character great really hasn't been captured in live-action for me.
The series is barely about her and probably for good reason in the end - her arc that is present barely makes any sense. What is her story in this show anyway? She's worried about turning to the dark side? No, that came up in one episode and was resolved in the same episode. Learning to be a better master? Sabine going down the Jedi route is a crappy idea and imo she lost a lot of what made her interesting too. I want that spunky Mandalorian back. I know why they're doing it, it's going to tie in the Mandolorian, and having Sabine as a Jedi is going to connect with that. I could have accepted it if she wasn't force sensitive, but being able to push Ezra mid-air over a gap like Kanan could, please... jumping the shark right there.
Thrawn, I thought he was okay, it's difficult to make him seem competent in the situation he finds himself in. The Dad bod is jarring though. In Rebels he was cleary very adept at combat, it's high unlikely Thrawn would not keep up his training and fitness in exile in case the day came where he would return.
Anakin was mostly good. I thought Hayden did a very good job at portraying Clone Wars Anakin which was fun to see. It felt shoehorned into the plot to me though, it didn't really make much sense how it came to be (the World between Worlds also seems to be a different concept than it was in Rebels) or what the point of it was (what did she really learn?), but there was some quality dialogue and scenes between them. I thought him appearing at the end of Episode 8 screamed of the memberberries/key jangling people have criticised the show for, it was unnecessary and it felt like a "hey look, remember how we brought Hayden back as Anakin? Here he is again!".
One character who really grew on me was Baylan. I thought he had a lot of potential (RIP Ray) as a gray Jedi who lamented what happened to the Jedi Order but clearly wasn't a good guy either. He had a good on-screen presence. I think they wasted him a bit, especially in the last few episodes, but it's possible they had to edit stuff out due to the actor's death. He will definitely be recast for S2.
The overall plot was lacklustre. It took a long time for anything to happen, and even then it didn't really pay off for me. We knew from EP1 that Thrawn was going to make it back. It was always going to be difficult to explain what Ezra and Thrawn had been up to after disappearing for 10 years (yes they've been there for 10 years minimum) but even then it was a pretty poor explanation. Oh yeah, Ezra is around, but Thrawn can't really find him - Sabine can find him in a day though. On Ezra, seeing him older was weird at first but he was probably the best adapted character of the main cast (besides Chopper!).
I hate to say it because she's one of my favourites, but I think Ahsoka should have died in Rebels. The World between Worlds was a stupid and inconsistent idea, and I don't like the direction Filoni has gone with her character post-Vader.
When I watched through all of the canon content (except Resistance), I rated and ranked them all as Star Wars content for some friends. I had Boba Fett at 3.5/10 & Obi Wan at 5.5/10. I think I'd give Ahsoka a 6/10 which puts it in 14th spot out of 21 which is probably spot on for how I felt about it.