Yes. They often have sales, and I picked up Pro for about the price of Standard a few years back. If you see a sale, get Pro. If you are not worried about the pro feature set, get standard.

The other thing is that the trial used to be very fair. I don’t know if they changed it, but it used to give you “days of usage” not contiguous days. I once used it for about 5 months because the 30 day trial only counted the days I actually used it and I saved using it for when I really needed it, and used WinMerge when I could instead.

Beyond Compare is a gem.

Yes, I bought it years ago and it's been one of my goto tools. Worth every penny, plenty of features beyond just being a git mergetool.

Depends...

Pro version gives you 3 panel merging. If you use that a lot then it might be worth it. Or, instead, use P4Merge for it.

You need the Pro version to do a 3-way merge.