Anyone use them before?

57 Wireless Road, Bangkok, Thailand 10900

They have facebook. they quoted me THB9,800 for 2 roman blinds curtain (1 for living room and 1 for bed room).

Are they reliable?

9,800 baht? LOL, you must be mad to pay that price. Just buy a large thick black towel, should cost no more than 500 baht, and hang it over the window. More effective than blinds or even blackout curtains, and 20 times cheaper than 9,800 baht.

No I haven't used them, seems a bit pricey.

We ended up buying some black out shades at Ikea, the roller blinds and then proper curtains. They work very well the only thing is suggest is the mesh style for ease of cleaning since the other ones seems to hold the dust.