Please don't panic. Cavo Bianco is one of, if not the nicest hotel in St Peters and maybe even Kavos too.
The complex as a whole is kept very clean. The apartments, bars, pool, grounds are all spotless. The staff are all really friendly from the reps, to the bar staff, the entertainers, english receptionists right through to the management. They all make you feel very welcome. On-site there is a shop, free safety deposit boxes, a restaurant, big screen TV for the football etc. 3 bars, childrens play area, tennis courts, pool tables, dart board, and a fabulous entertainments team with day time activities and a nightly programme including cabaret shows by professional entertainers, greek night, BBQ, Karaoke etc.
It was an Airtours hotel last year but has now been taken over by Thompsons who I believe are installing Air Conditioning.
The resort of St. Peters is just around the corner. 2 minutes walk. No paths so be careful with the kiddies. It houses loads of restaurants, bars and a few supermarket and more hotels (none of which are above a 3*)
It's generally quiet with most of the "noise makers" stopping in Kavos.
It may not be the best hotel in the world but compared to what you could have booked in this area, you won't be disappointed.
Hope you have a great time