I have the Twister FU-200, which is the smaller sister to the Stratos. The only real difference is the height over the bed (16" instead of 20"). I have now had this lathe for about 6 months, and it is a dream to work with. It is almost identical in construction to the Axminster AT1628VS, I believe the main difference are the legs.
Mine is mounted on a piece of kitchen counter top, which itself rests on a couple of 3"x2" pieces (I am about 6" tall, and the lathe was a little too low for me). I also stow the bed extension and various other tool pieces underneath the lathe to add weight. It is quite a solid machine, but obviously if the imbalance gets too great, it will start to move.
The sliding and swiveling headstock is great, adjustments are made in seconds, and it is ideal when hollowing bigger pieces (allows for a much more comfortable working posture). Similar to the AT1628VS, the indexing is not great, very fiddly, so I mostly use the indexing ring on my chuck. The change from lower speed range to upper range is quick, all the clamping levers work extremely well, and the lathe is silent up to about 2000rpm (in high speed range). After that the motor fan starts making some noises, but that's to be expected.
If I remember correctly, my Twister came with a European plug, so you'll need to cut that off and fit a UK plug. The manual is very good and detailed, and as far as I can tell, both the UK distributor and the German OEM are very good with their customers.
I am very happy with it and would absolutely recommend it to anybody who is serious about turning, but cannot afford one of the really big guns.