I have a 290v lathe from Warco and a Super Lux from Chester.
Both are a second try, the first ones having gone back. Initial response from Warco was disappointing (implied I was being an idiot for suggesting the carriage lock should work, the lack of any way to lock the cross slide wasn't ideal and supposedly hardened ways should be harder than cheese), but came good in the end, and the exchange was excellent, they sent one of their guys out fully equipped to remove and replace.
Chester's initial response was better in that they accepted there was a problem immediately, tried a fix then agreed a replacement without argument when it became clear it was fundamentally broken, but was a normal courier, so more faffing during the replacement.
Honestly I couldn't say there was much between them for service.
The Superlux was however much cheaper than the Warco equivalent at the time, assuming the specification met your needs, mainly as it came with DRO fitted, whereas the for Super Major or whatever it was an expensive uk fitted extra.
I did mention at the Warco showroom that I would have preferred to buy from them as local, but couldn't justify the price difference for what was clearly the same basic machine with slightly different spec, just got some shrugging etc.
Dan