flew business on QR 006 to Doha and used Al Maha Services - it was useful- they great you in entrance hall and take you straight though to their own lounge- where they take your passports and Visa. You are allowed to relax an use the lounge as you wish (its small though). They then walk you straight through passport control - no ques.
But if i was paying for it- would have to say a bit of waste of money- so long as you can read signs at the airport- then you should be fine!
