Leeds! Go for it!
I did my IR at LFS and couldn't fault them. Kevin Rowell did my training and he is a top guy. I know you don't wanna fly in a high wing, but to tell you the truth you 'll be so busy doing your scan and setting up aids that you wont notice how high or low the wings are! You'll have screens or foggles on so you wont be able to see outside anyway!
I used to teach IMC out of Denham. Having to fly to Southend or Cranfield just to brush up on an ILS or NDB was a pain and a waste of money.
Leeds has all the facilities you need to do you IMC without having to travel somewhere else to do them, saving time and money. If you live there and they have the aids, do it.
Have fun, it's a great rating to do, I loved teaching it!