Pros
It really depends on the team and project you are on. I started on a fantastic project with a lot of great people which over time turned into a disaster which made about 10 people leave. We haven"t had a single hire or a promotion in over two years. It happens regularly that we have simply no work to be done and we bring our personal laptops to work and work on our own pet projects to keep ourselves busy. There is also virtually zero communication from upper management. Even though we are constantly told Prague is a key location for Barclays, it certainly doesn't feel that way. What is even more sad is that with no promotions over the last year we now have 3 open positions for more senior roles which could easily be filled from within, some of my colleagues have been with the company for 4 years. Also the raise & compensation this year was ridiculous. The (public) year results say "we made more money, but the compensation pool for employees is smaller" on the same page that also says "aligning compensations with results". This just leaves me speechless.
Cons
In general it just feels like no one cares from the upper management, which translates to everybody to just not caring. Maybe they just want us all to quit, in that case job well done.