Think I finally found a legit Hummer specialist in Dubai, but I need some honest second opinions

I’ve been trying to track down a workshop that won’t just treat my 2008 H3 like a taller Tahoe, and after scrolling through pages of generic garages I ended up on a site where the header basically just says Explore Our Services, the whole layout is painfully simple which honestly makes me a bit suspicious, like no Instagram wall or flashy gallery, just a number and some bullet points about electrical diagnostics and HVAC stuff for Hummers. Before I call them I’d really appreciate if anyone here has actually used them for something beyond an oil change, I’m dealing with an intermittent transfer case motor fault that two shops already misdiagnosed as a bad encoder ring, and I don’t want to be the guinea pig if these guys are just another general repair outfit who happened to register a domain with Hummer in the URL. I’m in JLT and I can limp the truck there easily since it drives fine in 2WD, I just need to know if they’ll actually break out the proper scan tools and get into the transfer module without trying to sell me an entire new case first.