Hi
I did this tour in 2012, in fact the same one that Bob was on and I fully concur with all he says.
Like you it was my first JY holiday and on reflection I suppose it was quite a big one to choose. However I had a marvellous time and have great memories. Ranthambor and seeing a tiger close up is probably my best memory but the Taj Mahal is a close second. Varanasi was unbelievable and well worth the visit.
Best thing though is it opened my eyes to to single travel and particularly to JY who really look after you and take away any worries about being alone. Since then I have been on several more holidays with JY and will continue to do so because I feel it's opened up the World to me. I'm sure you will have a great time and hope you have a similar outcome.
Happy Holiday
Sue