I'll answer your question in a bit of a long-winded way.

Has he done well? On paper, he has. At the start of the season, two cup finals (with the potential to still win one) and a 3rd place finish in the league is a fantastic achievement. However, I think that's only half the story.

Does he deserve a bit more credit than he's had? Perhaps (given the above), but equally a lot of the criticisms levelled at him throughout the season remain the same, mainly:

- His unwillingness to alter approach (he is all about aesthetics - as Famous has said previously, the board should have been aware of that when hiring him, so not entirely his fault if he then sticks to what he's always done, we shouldn't be surprised he has)

- His substitutions and use of players - He barely rotated his teams and made the same subs for the majority of the season. Only when he was bullied into it did he start playing Emerson, RLC and CHO (not sure he would have otherwise)

- I don't think the players particularly respect him - The obvious example is the Kepa business, but there are a few others over the course of the season

- His use of Jorginho who in fairness hasn't been as terrible as is made out by some (I say this as someone who definitely isn't a fan) - There was a point early this year when he was desperately out of form...but kept playing (along with the likes of Alonso)

- We have scored something like 5 away goals in 2019. That, for an "elite" club is shocking and our league finish has a lot more to do with the form of our peers than it has with anything we've done (we've just been less shit than them...and shit really is the word)

- I haven't really seen any progress over the course of the season. In fact, we were arguably better in the first couple of months of the season than we have been more recently - We are fairly dire to watch, I can't remember a less enjoyable Chelsea team (probably since Porterfield in my lifetime)

- He asked for (and got) Higuain - There is clearly a decent finisher there, but his all-round game is not suited to the Premier League in my view. The fact Sarri wants to keep him despite the evidence that he's not really suited to us speaks volumes about him I think