As stated by Switchback, The USMS never lost it's 1811 series. The USMS offers one of the most diverse experiences in federal LE.
From my experience most who are in court and there most of the time, like that assignment and choose to stay there. If you produce you will get the chance to.
You will be hired as an 082 series and will not immediately attend 1811 school unless selected. The USMS is currently selecting 1811 candidates from the 082 pool.
As an 082 you will do plenty of court time. You will hook and haul prisoners for most of the time.
However, there are many different career paths inside the USMS. There are Task Forces of all kinds, full time warrant squads, Asset Seizure specialists, Witness Security Inspectors, Academy Instructors, Special Operations Group, Hazardous Response Unit, Tech Ops group, and the list goes on and on....
District, management and work ethic will have much to do with how well you like the job.