I am more a fan of 'real asian' cuisine I suppose than what has come to pass as 'bir' curry stuff - and to me, the Hilal epitomises everything I don't like about 'bir' - i.e. the Indian meals adjusted to what is thought to be the British palate taste. I visited the Hilal 1st time round in the early 70s and was very underimpressed compared to other Indian restaurants around even at that time - e.g the Taj in Altrincham was vastly superior in the taste and quality of its meals. The Taj no longer around sadly - it was run by an ex Gurkha.
I made the mistake of trying the Hilal again in @ 2005 - nothing had changed re my opinion of the meals.
Try Essence in Broadheath, or the Ganges (was Curry Cottage) at Woodheys, West Timperley or Swadesh - Bowdon or Seven Spices, Cheadle or Jai Kathmandu Northenden, Mughli Rusholme, Mughli - Knutsford - all offer far superior cuisine / taste experience than the Hilal - but that is just my own taste buds at work.
Another one to avoid in Timperley is the Mhariam - just doesn't cut it for me at all compared to many others which are well worth the visit. One visit to the Mhariam - which will be the last.
Also made the mistake recently in trying the once excellent Dilli in Altrincham. Expensive bland rubbish. It closed down a week later which didn't surprise me. When Dilli 1st opened 10 years ago it was excellent - some incredible regional dishes on offer - but soon the variations available reduced and the quality of taste dropped - after 4 visits in 2 years I stopped going to the Dilli.