Accomline and Hotelclub are actually businesses of ORBITZ.

I saw no complaints under Accomline.com and happily booked my 2 nights hotel room in Ho Chi Minh.
Then, when I get the voucher, it stated that ORBITZ has paid to the booked hotel. Only then did I search under Orbitz and saw the long list of frightening complaints.

Hope I get my hotel room when I get to Vietnam !! (The voucher looks so plain and w/o even a proper letterhead logo)