I like MuseScore, but I've found you need to figure out some tricks to make piano music look like you want it to. You have to pay attention to having multiple voices in one staff and fiddling with the orientation of the notes manually. It works pretty intuitively for simple textures, Alberti bass with a tune on top, or a simple waltz accompaniment, but if you pick some complex piece of late Brahms, even, and try to enter it in MuseScore yourself, it is pretty tricky to make it look like a published edition. Not that it can't be done, but you have to be prepared for a learning curve when you start playing around with it.