It is no good having the needles in the right place if you are in a 45 degree bank.
If you find yourself in a 45 degree bank while supposedly flying an ILS, having the needles in the right place is the least of your worries!
I do completely agree with Prophead though. If you just want to get a feel of what instrument flying (including an ILS) is like, a PC sim is a pretty decent way to do it. Plus it will happily throw in things like gusty crosswinds and up/down drafts. Instrument flying is first and foremost about flying on instruments. Once you can do that reasonably happily, THEN it is time to start trying to fly approaches.