Was entirely disgusted with the service in the Fota Island Sheraton last year. It was the worst I have seen in any of the dozen odd hotels I've stayed in in Ireland over the past few years.
For example, hubby & I sitting in the bar where 5 staff were on duty and there were maybe 20 guests at various tables - my glass sat empty for 40 minutes without anyone asking me would I like another drink.
One night we had dinner in the golf club, and the heavens opened up afterwards so the barman kindly phoned the hotel to see if they would send someone to pick us up. About 10 minutes later no sign, barman phoned again to be told someone would be over asap. 30 minutes later we gave up and walked back. I stood in reception flooding the floor and politely told the several staff standing around that I was bitterly disappointed in the service. Was promised a coffee/drink if I went to the bar, said we'd be there after a shower to warm up. Went to the bar, no sign of any decent service, let alone a complimentary drink.
Hotel itself was great looking, but just felt grabby. No free water in bedrooms, it was in mini-bar and very expensive. Swimming pool (water quite cold) had no sauna, steam-room or jacuzzi - you had to pay extra to use their thermal suite. I wouldn't go back if you paid me.