as u said its one of the resturents in W hotel which is 5 star property and the standard is hight so definatly accomodation will be good along with the hotel and walking distance to city centre doha so if any day u will have u can go there walking , and as per my knowledge the tips are well enough also per month which will be almost 300 to 500 usd per month , so my suggestion go ahead and we welcome u in Qatar .