Hi Pat, I stayed in the Pliska last year, it is safe but I would never stay in it again, no air conditioning, go B&B as the food is not up to much but as usual the food you can buy is good but the buffet food is well lets just say it was not to my or my families taste.
The pool area is great the bar staff are very friendly & are the same staff this year I paid them a visit when going to Aquapolis.
I heard you can have the air conditioning now for 6 leva a night.
I know people that go to this Hotel every year they love it, so untill you go yourself you'll never really know.
You'll probably have read about Prostitutes using this hotel when we stayed in July 2005 we never saw any ladies of the night in the hotel.
We are leaving our booking for next year to Bulgaria till the last minute as you seem to get a better deal & less hassle (Balkan Holidays).
all the best I hope this helps Stephen