Pros
Hours are definitely not as bad as London, New York, Hong Kong, etc The island is very easy to commute so working here save 2 hours of commuting, tax is lower than mainland UK.
Cons
Very sad to say, the office politics is extreme and local people favoritism is very obvious. I can guarantee the progression for an expat is 1/4 the chance of a local, I see expat works 3 years to be a Manager candidate, and they promote a local straight after 1 year qualified to Manager. And in here they make an level call Associate Audit Manager (Manager candidate), an extra gap between Assistant Manager to Manager, it is not like London they promote people within 18 months. For an expat, you should expect to be a manager from assistant manager in 3 to 4 years. FS experience is okey but not in London standard, but the team management experience is poor, an In Charge mostly on one man job, and mostly just have an Indian division to delegate work. The local staff are mostly school leavers and did not attend university. Standard in general, is below big city standard. Also a small Big4 office, below 100 people.