Today, I was doing a splitting job for a customer, enough elm to be a royal pita! A 27 ton splitter could not get through most of it. I cut some of the logs in half with a powerful saw, then split some of it. A sinewy mess trying to plow through this crappy wood!
I will have to talk to the customer and see if they want more of the American elm split. Elm has other purposes, but firewood is not its strong point to put it mildly.
It's all subjective I think. For people who are used to beautiful hardwoods and 30 ton log splitters, elm may be a pain, but I split around 10 cord by hand, every year and have done so for many years. It's a mostly locust and elm, with some different species scattered in there and I do just fine. Sure, there's some pieces I chainsaw into chunks, because they don't split, but that happens with every species I've ever split. Knots and Y's just don't split good.
I guess my point is, what's hard and a PITA for some, is not so for others. We all have different thresholds as far as what we will tolerate and what we won't. Where I am, we aren't surrounded by millions of acres of hardwoods, so I take what I can get. Also, a lot of the wood I get is from helping out older folks who are on fixed incomes and can't afford tree companies, so I help them out.
Heck, last year I heated my house all winter on cottonwood and I was never cold. Not even the 10 days of single digit highs and negative overnight temps, cottonwood kept the place nice and toasty. I used it because an old lady wanted it cut down and it's what I had ready to burn and most wouldn't even start their vehicle to pick up cottonwood, let alone process it.
Here's some pieces I split off of the stuff with bark. It split better than I was expecting, but it was the trunk with no knots.