My wife and I have visited the Emperor's on a few occasions before (back when we were dating) and I personally feel it is the best Chinese restaurant in the area. It's busy every time we go there - always a good sign - despite it being well off the beaten track.
Upon arrival you are invited to peruse the menu over a drink and prawn crackers, and your order is taken prior to entering the main dining area. This works very well in my opinion, and actually helps build the atmosphere and anticipation. Once seated, the food is served, and for us it's always been excellent. Personal highlights for us include the wafer-wrapped prawns, the satay chicken skewers and crispy seaweed for starters, the aromatic crispy duck, spicy crispy shredded fillet steak and chicken in yellow bean sauce for mains. As I said, the food is always excellent, and though it's certainly not cheap (neither are the drinks), the quality makes it far less painful!
While it's too pricey to be a regular experience for us, it remains our number one choice in Leamington Spa for when we want to go out for a nice meal or a special occasion. It's certainly the best Chinese restaurant we have been to in Warwickshire - and while the service quality and speed aren't ALWAYS great, and the decor might not be to everyone's taste - I still feel that this is one restaurant in Leamington you really should try.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.