I have a Kuzma XL DC. Originally swapped my SME 20a for the XL 4, after direct comparison, then upgraded to DC. Another enthusiast I know chose the XL 2 in preference to a SME 30 after a home demo, a few years ago, SMEs have reputedly improved since.
Had an extended listen to the Tech Das 3 and it sounded very good, did not feel the Kuzma DC was lacking in comparison. Actually preferred the sound of my system overall, obviously the rest of the gear was totally different, acoustics etc.
The DC has a 22KG plater and gets up to speed in seconds, I use a clearaudio speed light and disc - Kuzma displays excellent speed accuracy.
Tremendous dynamics and bass extension with 4pt, performer placement and scale is also excellent, great on solo and small scale instruments as well. I buy a lot of 60s and 70s second hand jazz albums, when cleaned the majority sound better than modern pressings.
Very simple design principles, all machined from solid brass (Non magnetic) except platter which is an aluminium composite laminate - total mass is around 90KG inc 2 arm towers.
There is one thing to consider with the XL - it needs to be carefully sited. I have mine on a custom table with a slate, granite and latterly panzerholz, plinth (65KG approx - total inc TT & support around 200KG) which sits on air springs. I arrived at this design after exchanging emails with Franc K. I can stamp heavily on the suspended wooden floor with the cartridge sitting on a stationery record, vol on max, and hear no disturbance from speakers. Have reinforced floor to be on the safe side haha.
Have not heard any of the uber tables like Tech D 1, Continum etc. I am sure they sound fantastic but they are well out of my league, the XL does a great job of sounding engaging and realistic. Had mine around 7 yrs and it has proved reliable so far.
Like any good high end gear there will always be subjective preferences for one type of sound over another one can't be absolutist and say this or that is the best.
Try and compare the Kuzma and TD 1 (you have to like the sound), if not available in the same location, then in two very similar systems - the Stabli M seems a good bet as well.