I had been using TeamViewer for quite a while and never had any problems, BUT I have heard many horror stories about being cut off, then having to jump through hoops, write letters and more letters, then some more letters.
I decided about 2 years ago to get off of TeamViewer and I go with Google Remote Desktop. I use a K3S at the remote station and it runs fine this way. I have my ISP at both houses at AT&T; 300Mb at the remote and 1Gb at the control station. I only use CW, so I really can't comment on how things would work for SSB.
73 de Jim - KE8G