It's not too bad!  The characters are a little off-putting, kind of uncanny valley between generic figures and the actual Harry Potter actors/actresses.  But the erotic portions are enjoyable and entertaining.

It's a bit tedious running to and fro to complete the tasks, but at least it's clear what needs to be done.  And the rewards for finishing the tasks are pleasant!

I'm looking forward to more content and seeing how perverted Hermione will get!