Pros
The office is in a very good location, and they had a nice amount of free hot drinks on offer to have whilst you're at work. I was paid fairly well considering the easiness of the job and achieved a bonus regularly. However, these conditions appear to be vastly different (and much easier to achieve) than the permanent staff. They were also very flexible with my hours.
Cons
I was hired as part of a temporary project they were running for the launch of their new iPad app. The first 3 months were actually quite pleasant and I was really enjoying my first endeavour into non-retail jobs. However, from there the flaws in the company became apparent. For one, management directions changed constantly, and thus it lead to confusion within my team regarding how to perform their job correctly. It was very targets based - my team had to complete 4 buildings an hour each, which was doable if they were simple buildings, but it left very little room for sorting out the really difficult buildings which were in an awful state. This caused stress, as falling behind on work could result in a quick dismissal. Many of the employees on my team were fired without any form of warnings, which caused tension within the office. We worked in a room which was separate from the rest of the CoStar Glasgow, which was isolating but we were mostly fine. However, the room became incredibly hot during the summer - again probably breaking health and safety law on working conditions for offices. Water and fans were provided but they did very little else apart from this. In terms of management, they appear to be slaves to company doctrine. I saw very little independent thinking from managers, it was CoStar's way or no way. We were also told we had to confirm anything we didn't know with the tenants - people who quite frankly didn't want to talk to us or knew very little about our questions. I stopped calling after a while as most information could be derived from tenants web pages and Google street view, but CoStar seems to believe in the importance of telephone calls. Quite frankly phoning was a waste of time 99% of the time. I would also like to add that CoStar encourage what could be described as unsavoury work practices. I am unfortunately unable to go into details due to the rules of Glassdoor, but the encouragement of these work practices have lead me to conclude that as a company CoStar are immoral. Finally, I would like to add that whilst we all accepted we were temporary workers, CoStar definitely made us feel insignificant. Our isolation from the main office couldn't be helped, but we didn't receive the same benefits as employees despite some of us working there for more than 6 months (I was there for over a year). We didn't receive the same holiday entitlements or were invited to the lavish social events they put on for the "real" members of staff. I would only advise working here if you are absolutely desperate for money. There appears to be little room for advancement in this company, and turnover was very high amongst the main office staff.