Pros
I was able to work almost anywhere. I was able to move during my tenure and it didn't disrupt anything. SBI doesn't care where you work and this gives people, including me, a lot of flexibility to live/work wherever they choose. There are no "office hours" like other professional services firms. When you're home, you're home without having to go into the local office just to be seen on a Friday or Monday. There's no pretense - Partners and others just tell it like it is. Sometimes feedback is hard to swallow but there isn't the usual 'office politics' that are present in just about every other company. Some of the clients are enjoyable to work with some of the time. After-hours socialization with client contacts is expected and it's one of the perks of the role but it negatively impacts how much time you have to spend on the deliverable so there's always a personal price to pay for entertaining clientele. It leads to late nights and exhaustion. I got smart on a lot of stuff very quickly. There's a ton of project variety (they actually use that as a selling point) but I rarely had any input on what project I was assigned to. The firm runs very lean so once you roll off a project, you're the 'next up' for whatever deal/project has just been sold, no matter whether it's a good fit or not. Some of the Partners and Principals seem to genuinely care about others.
Cons
The slick sales effort from the Partners captivates desperate clients who are looking for a quick fix to their problems. SBI takes advantage of the prospect's mindset and situation to plop a gigantic proposal in front of them. The Partners and Principals who sell a deal make a bunch of promises that the delivery team needs to fulfill and sometimes it's impossible. This creates tension within the team. If you bring up the issue, the Partner or Principal will usually tell you to figure out how to do the impossible anyway even if it shouldn't have been promised during the sales effort. They talk about being as good as McKinsey, Bain, BCG, Blue Ridge, and other well-known consulting firms but they really just take bits and pieces of what they find from those other firms and package it up as their own unique product. It's a sham. Benefits may as well be non-existent since they are so horrible. Travel exceeded what was discussed pre-hire. Much much more than 50-60%. Expect 75%. Compensation package is average. There is no opportunity for equity except for Partners. Vacations are hard to plan. If you make advance arrangements it's very likely that there'll be a project conflict when the vacation time rolls around. That leads to conflict with the Principals and Partners.