We can give some professional opinions on the venue, having shot a few weddings there.
It's a lovely venue with lots of opportunity for photos- both for group and family shots and also for bride and groom portraits.
The staff, in our experience have always been fantastic. Their wedding co-ordinator has always been efficient, without being pushy or unnecessarily bossy. Bar/waiting staff have always been friendly and helpful too.
The food is beautiful- each time we've been provided with the same meal as the guests are eating.
"Bad" wise, the dancefloor and entire dancefloor area is rather tiny for such a venue and is a little awkwardly located in my opinion. It's down some little wooden stairs, which you'd probably never anticipate was where the party was happening unless you knew otherwise.
Guests therefore seem to hang around in other areas and wont always venture in, which means frequently the dancefloor area is empty or not very well used (in our experience) Probably also due to the fact that there is no seating in there- so older guests prefer to sit in the bar, which is elsewhere. Also, if guests are tired or need a sit down, they have to leave- which makes it more likely they wont come back! Entering that room is also a bit like walking into a pub and everyone turning around to look at you if there aren't many people there as you have to walk down the little stairs to go in, which are the focal point in the room due to its size.
Another thing worth noting possibly, is how many of your own touches you want to add. A previous bride for example, mentioned to us that she wanted to have an afternoon tea party but said that she hadn't been allowed to. Others have also echoed similar things, which suggests everything is quite "set" and you may just have to choose between the options you are given for certain things, rather than what you may have ordinarily chosen yourself.
Of course however, that's second hand information and therefore may not be 100% accurate.
Oh and of course it's relative, but it's one of the more expensive venues in the area.
If you have specific questions we'll try to help :)

Wedding photographer and pug obsessed bride to be!