It's perfectly safe. I am using it on a
daily base since long before the TPV-directory was even considered as an idea, and I have never had any issues with it.
(Except once with a local C-library back in uhm.... 2008-ish? So long ago it is completely irrelevant these days anyway...)IMHO Henri's viewer is
very stable, and he's fast on fixing issues.
(Thanks for all the work you do Henri!)The only "issue" that you might eventually have is if you need to talk with LL's support about something viewer related. They tend to sometimes be a little on the snarky side when you don't use their own official viewer. But nothing else will happen, so take a big smile and enjoy it.
Worth noting is that Henri has been doing this viewer for many many years, and is a well known person in the developer circles
My 0.02 of thoughts of any currency bundled with a huge amount of appreciation ^^