I'm actually pretty surprised that the only Good Guy English Racing post is from 2006. For my part, these guys are AWESOME.
I got my VR4 in September of 2012. It came to me as an 80% complete build project with some cosmetic and operational issues. The motor was rebuilt around 75,000 miles ago with a hot tank, overbore, pistons, etc. Evo head, cams, ported intake, custom exhaust manifold, 20g turbo, k-sport coils, Walbro 255, 1000cc injectors, some intake work, etc etc etc. it had a keydiver chip, ran a bit rough (still strong) and had some dents and leaks and such.
After dealing with as much cosmetic stuff as I could, I set to getting the keydiver chip in order. the wiring harness had been hacked to crap by years of tinkering by various mechanics and some of the keydiver functions weren't working. I repaired the clucth wire mod and immediately noticed that the engine was knocking significantly under boost (@15psi at this point). It was at this point I decided to take the car in for a DMSLink and ETS intercooler. The guys from ER came highly recommended, so I went out and had a chat with them. Professional, well-informed and very helpful.
I dropped my car of when they were ready for it and after 2 weeks, it was back in my hands. The work was excellent, but what really makes them stand out was the aftercare. There will always be little tweaks after a tune. My car was no different and with their guidance, I was able to get my car running perfectly.
Bottom line, they know their sh*t and they do good work.