going on holiday end Jun and have to put 9month old bully into kennels. Very worried about leaving him. Never had to leave dog before so any advice . We have looked at a few but do not like them maybe we are expecting to much .

Keep looking and if you find one you like ( well at least be happy with) ask questions .
How often are they walked?
Are they insured?
What vet do they use or can they use your vet in an emergency?
What are the feeding arrangements?
Where will they sleep?
Is bedding provided?
How often are they cleaned out? (This should be on a daily basis)
If you have any medical conditions will treatment be carried out to your liking?
These are some of the questions that i would ask and more as i think of them. write a list so you don't forget and mark their answers down.
Also when you find one IMO i would let your dog have a weekend visit first to see if he likes it. Most dogs do, its their holiday away from you lol :D If your happy with the kennels then your dog hopefully will be happy too. They can sense when your not happy.