So far, I am enjoying the experience. Full disclosure - I had an account on lemmy.ml a year or two ago that I deleted because I was not using the platform. I'm more engaged this time around. The only technical issues that I've noticed seem to be tied to the rapid growth in the user base and the administrators seem to be making adjustments as growth continues.
I haven't had any difficulty subscribing to communities that interest me and there seems to be enough content being generated to keep me interested and engaged. Generating content has been easy so far and I am enjoying myself.
The instance system seems nice - I like my instance and there are some good local communities. Some of them seem to replicate communities on other instances, but I don't mind having more than one community to check when I want to distract myself with a specific topic.