Well I am currently undertaking my IMC at Denham. I will say that they are pretty expensive but I have been very pleased with the standard of teaching and aircrafts.
I have covered everything to date in alot of detail with plenty of holding patterns, NDB work (tracking and approaches), VOR tracking etc etc. However I have yet to reach the ILS which is the next task. (cant wait
)
Even though I havent finished (still 9 hours to go) I would recommend it to anyone, I can already tell the difference in my accuracy and skill as a pilot. I think that every PPL should certainly undertake further instrument training as it is a fantastic back up just in case of instrument failure, bad weather etc etc
Good luck
rocky