Easter Road Party Venue (not football related)

Hi All, and apologies for a non football thread. Myself and a couple of buddies are turning 50 this year and investigating Edinburgh venues for hosting around 100-150 folks. Ive seen options on the official site, Edinburgh Suite, Gallery and Captains Lounge.

I wonder if anyone would share their experience of any of these as Party Venuies, and ball park budgets?

Thanks in advance.