Cleveland is like any other inner city ems system, as you noted. The overall majority of those hired use it for the experience to get hired on a local fire department. The rest are lifers.
No reason to think it to be unstable, it's been around since 1975 as a third service and will not be replaced by private. If anything it could be merged with fire, but not likely to happen any time soon. Current compensation is excellent, starting at $17 and topping out at $26 per hour in 5 years with plenty of OT available. Benefits are very good with full coverage. Retirement with pension is currently 32 years, however the union is working on lowering it to 25 and out.
They run 18 units 24/7 out of the city fire stations and recieve 116k calls a year, however transport about 75k per year. They work hand in hand with fire on most calls, who are mostly emt's with a handful of medics on several ALS first responder engines. The City just passed an income tax increase, with much of it going to public service. The plans are to increase to 25 day units and 21 at night in 2017, while hiring 3 classes of 35 cadets in 2017. Obviously a huge expansion which most there say they will believe when they see it.
They run mostly double medic units with permanent partners rotating calls however way they choose over seven 12-hour shifts every 2 weeks. They hire a mix of emt's to medics, however emt's are required to become functioning medics within 3 years of hiring. They work with emt's scheduling to help them go to medic school.
Politics are what you would expect, however they still remain a fairly close knit group.
Some advancement is there, but limited to those who really want it. They have roughly 180 in the field split between 4 shifts (estimate 175 medics to 15 emt's). They have 11 Captain supervisors in the field split between 4 shifts too, which will be increasing by 4-5 next year due to the tax increase. Captain tests are given and you can qualify after 2 years in the field. They also have sergeant positions who work at headquarters, running day to day operations including education, supply, QI etc.
As for whether you'd hate it, is up to you. The only ones who don't like it are those using it as a stepping stone and are getting frustrated with not getting hired on in the suburbs. For the lifers, it's a public relations job, if you know what I mean.
That's everything I learned while there. As you noted, mostly typical bs calls (easy BLS), surrounded by the occasional trauma or true medical call.
Whether a stepping stone or not, they're supposedly hiring this large group in 2017 and it's a great opportunity to get on board into an expanding city run service. I know they REALLY want medics to be recruited so you should consider it, and pass the word on! The only hard part is getting through the 12 week academy!
Good luck!