Ive never fished it myself to be honest. i have heard good and bad things about it though ( like any water i suppose ).
They are supposed to be shy biters but if you get the method right you can make a quite decent catch.
Other waters you might wanna try are Lakemore, sale water park, Four seasons, Llyn Gweryd, Mescar, Rosemary wood ( all of these are within 1 - 1 1/2 hours of you at most )
Also the Liverpool park lakes are always worth a shout ( and its free fishing ). With some of them having 30's in them.
Although i have heard stories of a lot of the bigger fish dying over the winter due to the council not bothering to get off there ar$£ and break the ice as the lakes we frozen for about 3 weeks.
Im not sure how true these stories are only time will tell !!!