I've been using it for a while and can't say that I've experienced any issues. One difference is that the SublimeLinter for ST3 doesn't come packaged with lang

I've been using it for a while and can't say that I've experienced any issues. One difference is that the SublimeLinter for ST3 doesn't come packaged with language-specific linters. Instead, they're separated into their own packages. This may be a 'pain point' if you're switching but I consider it a good long-term design decision on the part of the SL devs.