The look of Obsidian put me off too but after I got into it I realised the whole theme is totally css-able. It's really easy to make it your own.

I do agree though, they do themselves no favours with that ugly black / purple website. They need a much better, much prettier default.

All that aside, I'm delighted with my switch to Obsidian. Just an amazing tool, and total reassurance that it's just markdown with all the benefits that brings. So glad to be rid of Evernote...!