Firstly I'd like to make clear that I have not even set foot inside of this hotel so my review is not a review of the facilities themselves. With that in mind I don't think I'd even want to try their facilities out.
I, very recently, emailed this hotel to enquire on room availability. They replied "Sorry! Fully booked". Which I at first thought was a very short answer and not very appropriate of a 3* hotel. I then replied "Short but not so sweet answer, thanks anyway!", thinking it important to thank them for replying in order I could eliminate their hotel from my search. But then they replied "Didn't have to reply, sure most hotels didn't". This I consider to be EXTREMELY rude and have sent them an email in response explaining my thoughts.
I wouldn't even recommend considering their hotel for a stay in Cardiff. This attitude probably sets the tone for the staying experience. Strange and disappointing since their website states;
"Manor Parc Country Hotel & Restaurant is a family business with friendly, personal service and attention to detail."
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC