This is a small budget hotel - more like a guest house. Staff are very friendly and helpful. Rooms reasonably clean - though in need of a coat of paint. However, bed linen, towels, etc were really crisp and clean. Food average. Breakfast OK, no variety and they tried to charge me for coffee we had with breakfast. Watch out when you pay the bill. Overall fine for the night and if you do not pay rack rate, but go through a discount website.
The front desk personnel was unprofessional, it took forever just to find someone able to give the taxi driver directions and I didn't receive my change. At least I had booked the room at a discounted rate because it definitely wasn't worth the full price. A drip in the bathroom required earplugs to sleep. The only thing good about it is that it's in a nice area, which was a plus for women travelers.
When on the internet, I see a low price option such as OYO AIIMS, two main questions come to mind: 1) is the room be clean enough? and 2) is the location reasonable (esp. in terms of connectivity)? As someone who landed here from America (no prior Delhi experience), I can say that I was satisfied on both these counts, especially taking into account the small price.
The staff at hotel reception, Mr. Rajinder was very helpful with everything.
So if you are in doubt, I would suggest you go ahead and make the reservation!