I don't know anything about that shop specifically, but from their website, it looks a lot like many of the tourist-focused operations with pictures of all the celebrities for which they've made suits (for free, of course -- you'll have to pay) and promises to have it ready for you in a timeframe too short for the amount of labor necessary for a top-quality suit. And they're relatively new. I haven't had a suit made there in over a decade now, but at the time, WW Chan & Sons, Gordon Yao, and H Baromon were considered quality tailors there and had been in operation for decades. The first two of those make periodic trips to Europe and the US which is nice if you want to make follow-up orders and don't travel frequently to HK.
I don't want to be too critical of the tourist-focused shops. It is certainly possible to get a serviceable suit at one of those places that will hold up to occasional wear and fit as well as an off-the-rack suit that's been tailored for you. It can't be top quality, though, when its total cost is less than the cost of the 3 yards of quality wool required for the suit. There's been something of a spike in demand for those guys in the last 10-20 years and their prices have gone up accordingly. As a rough point of reference, the last good suit I had made there cost 1500USD.
I don't want to be too critical of the tourist-focused shops. It is certainly possible to get a serviceable suit at one of those places that will hold up to occasional wear and fit as well as an off-the-rack suit that's been tailored for you. It can't be top quality, though, when its total cost is less than the cost of the 3 yards of quality wool required for the suit. There's been something of a spike in demand for those guys in the last 10-20 years and their prices have gone up accordingly. As a rough point of reference, the last good suit I had made there cost 1500USD.