I've bought from CJ a few times, always been pleased with the gear - only issue I had was after buying my X-H1, it was sent without the flash unit that was listed as included [as should be with most Fuji bodies] and the hot shoe cover and strap lugs were also missing. A quick email sorted it, they sent out the missing bits and for whatever reason added in an extra battery and strap! Camera itself was mint, with less than 1K clicks. I also bought a few lenses, chanced a Canon 85mm at one point that was listed as well used and only £160 plus %15 off - the lens that arrived was in very good condition IMO, excellent even. You just have to catch them at the right time, when there's both good stock and a good sale. Their default prices are higher than most, so I'd only buy when it's 20% off.
Looking at the site now, that is about the lowest amount of stock I've ever seen on there. Usually a bunch more in each section