I had a demo last week from AC of a few of their offerings in that sort of price range: Two of the Prolights Lumipar range, which were punchy for their size but the changing of lens to change beam angle was a complicated process (45 minutes per light). Multisource rather than COB meant fuzzy shadows which may or may not be an issue (no colour fringing though) The Chroma-Q Color One 100X was frankly a little disappointing, nowhere near as bright as the other options, particularly with the 'lens' kit which consisted of basically some frost gel. I guess you are paying slightly for the brand name. It may have been just the demo one but the barndoors where stiff to fit, rotate and remove which would be frustrating if a regular problem. The rep assured me, he'd never seen that before. The most interesting comparison was between the Prolights StudioCOB and the StudioCOBplus. The Plus is RGBW where the COB is only RGB but as the chips are both 150W it actually makes the COB brighter in saturated colours. The plus was better at pastels as you would expect but the COB was pretty decent . The Plus had the benefit of IP65 rating and TrueCON but neither of those is particularly relevant to me. Both have optional barndoors as well which, whlie not as effective as on a fresnel, would allow you to tidy up spill. Overall I was most impressed with the COB, not needing the IP rating means the Plus is just more expensive for very little benefit. Give the guys at AC a ring, they are normally very happy to come and do on site demos. It was really useful seeing them in my space and being able to directly compare them with the elderly pars I'm trying to replace. As you are based in Bristol, I'm sure Stage Electrics will happily come demo things too, but they've struggled to find anything that fits my brief in that price range (adjustable beam angle is a must for me). Hope that helps. Michael