it's my 4th visit to kodai and 2nd stay at sivapriya. I recently had a chance to visit kodai on off sesson time (23 to 25th June) and rooms were very much available to due to off season. One thing you cannot get out side is tasty tounge tickling food and very dood service from staff.
All the staffs don't look for tips and work and they are very dedicated and kind. travel desk is much helpful and it's kind of hotel where you can just drop and they will take care of everything like food, site seeing, etc....
Apart it does not have a breath taking view as it's in the middle of the town but not noisy.
It all comes in reasobale tariff and you can give it a try