Has anyone ever ordered anything from here. Everything I can find seems to be legit. There are links to the store from cycling clubs, and blog sites, etc. And the owner Colin seems to have a very good reputation for fitting, etc.
Any feedback would be greatly appreciated.
The store is legit, it’s there, it exists.
Colin has been running Bikehaus for longer than the 8 years I’ve lived in Singapore, and has dedicated himself to helping triathletes and cyclists alike both in his stores and at races and events. He was the team mechanic for my cycling club’s racing team at the Tour of Friendship in Thailand this year. Not sure about his rep for bike-fitting though, nor would I say that he is any better or worse for that than any other Singapore bike retailer. For a good fit I’d recommend Toby at Bike Fit Asia 
I have to ask - what are you ordering? Bike Haus has a decent selection relative to a lot of Singapore bike shops and I was in two days ago buying some chamois cream. But unless ordering from them is a matter of convenience, I have a hard time imagining you couldn’t find it cheaper elsewhere (even with import duties). I moved from the states a year and half ago and in my experience bike gear is either a little or (usually) a lot more expensive here.
What are some better options ?