Pros
In the operational teams there are numerous good people who want to collaborate to get things done and who are willing to be good corporate citizens despite the intense pressures placed upon them by management. I also found the compensation to be good in comparison to what I had been used to previously at Credit Suisse (though acknowledge the difference in trajectories and profitability of UBS to Credit Suisse would've impacted that).
Cons
Absolutely the worst part of working at UBS was the culture that I experienced. Being part of the 'Non-Core & Legacy' group (i.e. ex-Credit Suisse Investment Bank), I can say that despite communications to the contrary, UBS management's actions showed to me that they view those CS heritage employees as expendable and ultimately less-than the UBS heritage staff. As a senior member of the team, I sat in meetings with UBS management who acted in aggressive and unprofessional ways towards NCL staff, applying unnecessary pressure, overloading them with work and unreasonable deadlines (even passing comments at points that they should be grateful to still have jobs), and generally just creating a toxic work environment within the division. To see the massive successes of those NCL staff praised at quarterly town halls and in results whilst having also seen the disrespect behind the scenes was incredibly disappointing. What was also especially poor, in my opinion, was the championing of Raleigh as a strategic location for the group (housing a couple of thousand incredibly talented CS staff) but then many job opportunities being closed off because UBS hiring teams don't consider Raleigh to be a "strategic hub" or needing "more time to understand the footprint" (it's already been 2 years since the acquisition). I escalated / saw this be escalated by others to UBS management on multiple occasions, but I would say that no meaningful action was taken to address this and the Raleigh location remains in a situation with limited opportunities (especially for senior staff members) despite the talent that exists there.