Pros
You (have to) learn a lot very very quickly. The pay is very good compare dot my last job and the one I am in now. The overtime rates are so high it is quite hard to leave arbtech, because you have to take a big backward step in pay (it is not that difficult to double your wages in overtime). Tons of friendly people. Socials can be fun. Perks and 40 days holiday is miles better than other places. Compared to my previous jobs and current one, I highly rate it as an experience and miss it a lot sometimes. I definitely miss the money.
Cons
Don't apply unless you know you can consistently work very hard all year round. The company does not have 'quiet periods' like some ecology consultancies do. No other way to say it..summer is mental. Management can be incredibly supportive sometimes but they seem to have a very black and white approach to resolving issues and sometimes that doesn't come across well from an employee standpoint. The boss is actually nice in real life but it took me two years to find that out. Some of the ecologists exist in cliques and those can be hard to break into.