I just came back from a 3 days tour Delhi-Agra-Jaipur organized by Delight Tour.
I travelled alone (I'm a 33 years-old italian lady) and I’ve always felt safe and relaxed during the tour.
The guide in Delhi was Vikas. He was very patient repeating the English words that I couldn't understandand always very kind with me.
In Agra my guide was Islam. He is a very polite person, gave me a lot of information and he is also a goodphotographer (a pleasure if you travel alone).
The third day the guide Ganesh give me explanations alternated with jokes in order to make everything morefun. He is a solar person.
For all the 3 days my driver was Sanjay. The traffic in India is very chaotic, but I felt always comfortable and in good hands considering the local driving habits.
I choose the 4 stars hotel tour and all the hotel were good, clean and comfortable.
Only one negative thing: one evening in front of the hotel in Jaipur no one helped me with the luggage in the trunk and the car hood fell down hitting my head, only after a while hotel personnel offered some ice.
PS. if the guide suggest you to not enter in a place planned (and already paid in the tour), don't listen:every monument is nice to see and there is time for everything (you will feel tired but happy).