I stayed in Klana several times in the early 2000s. Company stopped using the hotel around 2005 as its condition was deteriorating. However, reading about the renovated rooms, my wife and I decided to give it a shot. Regrettable choice. Yes, the rooms why renovated, but why not completely? New bathroom, new furniture, new carpet, but the doors and doorposts were still the old rotten ones. Cleanliness (most important aspect!) was NOT ok. There was dust in multiple places and a LOT of it under the bed which we found out when something rolled under it. The bed was comfortable but the other guests slammed doors, so our sleep was only so so.
A few other bummers:
NO ALCOHOL SERVED. It has become a Muslim hotel. Nothing wrong with that, but they used to serve alcohol and it wasn't mentioned on the booking website nor on their own.
Some staff was really unfriendly
Breakfast was the least of all the breakfasts we had in Malaysia. Lots of dishes tasted if they were reheated from the day before.
Swimming pool water was kinda mirky and not inviting for a swim.
Lot of work to do to get it back to what it was. Do the internal renovation PROPERLY and give the outside a proper paintjob (really looked a bit decayed). Clean the rooms properly, improve the breakfast, teach the guests to respect other guests rest and improve the breakfast.
Not likely to go back there
