We’re using Freshservice. My opinion, it’s way less clunky than say Remedyforce (RF). For that it gets my vote.
I have my own issues with it due to the api limitations though ( you can raise a service request via the api but you can’t close one for example) and lack of other reporting functionality. There are also challenges integrating with Salesforce as they handle the authentication tokens totally differently.
As just a ticketing system though it suffices, I do prefer it over RF. In the end I use it’s data export api (you have two ways to access an api, the data export is better) and plug power bi into that for the reporting and then write my own measures.