Rega Planar 6 vs Technics SL-1200GR2 – Quality of Life Differences?

As a P6 owner I can speak to the Rega ’table: It’s easy to set up; very easy. The external PS is very accurate and last I checked, I had mine dialed in at 33.34 rpm. It’s very stable and it’s mostly a set-and-forget ’table. It really does sound and perform great with very little effort.

However.... the feet aren’t adjustable so if your stand isn’t level you’d have to shim; no azimuth or VTA/SRA adjustments but for some that is a feature, not a bug; attached RCA interconnects -- some like using their own interconnects and you can’t with Regas; fixed headshell so no cartridge swapping. But the most annoying "con" is the persistence of hum in the Rega tables (depending on the cart). My Soundsmith Zephyr MIMC is mostly hum free but my Nagaoka Mp-150 really had a hum issue. The consensus view is that it’s because of the way Rega grounds the tonearm through the left channel. I’ve somewhat mitigated this issue with this: https://hagerman-audio-labs.myshopify.com/products/humbucker

I’ve thought about upgrading and one of the models would be the 1300g because it solves many of the aforementioned issues. But it’s $1400 more so I’ve just stayed put and I’ve been happy. TBH, the only reason I might upgrade is FOMO not necessarily for performance.
 

I don’t know if the P6 is good value in between the P3 and P8. It’s an upgraded P3, not worth the price difference and jumping to the P8 is a better approach - from my own experience and what I read. 

Rega is weird in this sense, e.g. the P1 and P2 get extremely poor reviews one sweet spot is the P3, and while the P6 is good, what's the point really...

Define "musicality".  

No.

I believe the MoFi ultradeck is in the same price range and has very good reviews

Having set up a few Regas, most recently a P8, but P3 and P6 and Technics mostly SL1200 series, (and I own a GAE), plus in the past year using AnalogMagik on a few, let me say that I have a lot of respect for both companies.  Regas tend to just flat work.  They are speed accurate, dead on actually, as good as any DD.  The difference as you go up the ladder is more refinement.  Quiter, better bearings, better arms.  They are not the best choice if you want to change cartridges, try different things, that is a disadvantage if you are so inclined.  But, and this is a serious BUT, every time I have checked a Rega that had a Rega cartridge installed everything has been spot on.  No adjustments required.  They are optimized.  So if you just want something that works, and you don't want to mess with it, Rega is tough to beat.  And I'll tell you something else.  They seem to hit way above expectation.  That P8 I checked out was an easy match for my very carefully set up GAE that cost thousands more.  So for the person with a first priority to play records, who wants to know that everything is set up correctly without having to mess with it, Rega is unique.  If, on the other hand, the person is a hobbyist, who likes to try different cartridges, who wants to dive in and be involved with set up, Technics offers a very appealing line up.  As I said above these are very, very, very, very good turntables, both.