I've found that the standard of the hotels is far better than the self catering places. I'm not snobbish and can fall over with the best of 'em, but you get looked after in A/I's.
The rooms tend to be a lot cleaner, air con is supplied free in high season, and your linen is changed every day.
On the contra side the beer is weak, the spirits are weak,(except the Raki), and you can spend a lot of time queuing at the bar.
This year we spent 450, including a 3 day car hire.
Normally it's over a thousand, but the price for the holiday more than comes out in favour of A/I.
Apart from all that, we use a good tour operator who only uses good hotels.