Have you not followed the latest Keysight drama? If you're not buying for a business they're basically off limits in Europe.
RE the DMM6500, the transformer thing is hit and miss, new ones are apparently much better as they made a change to the design.
I got an ex demo unit which was older and made a lot of noise, they didn't hesitate to swap it (and then run the unit through cal) for free, though it was pretty slow (mainly due to shipping and customs, thanks Brexit!). New transformer completely solved the noise issue, though I wish they'd avoided it in the first place with a more conservative design.
The standby use is annoying - I gotta admit that I'm tempted to try and do something to fix it.
For doing a quick measurement the UI is a bit slower than using a pure button driven unit like the old VFD meters, but it's not too bad, and the flexible graphing etc is fantastic when you need it. Fair compromise in my opinion, and the meter was a lot cheaper than a new LCD Keysight (with slower boot time) would have been too.