We too have to replace our recliners sooner than later. I made the mistake of leaving the back window shade up and the sun shining in caused the upper back cushion of one to deteriorate. Ugh! The other is fine and I'm considering just covering it for now till next year. Talked to our RV tech and he said any RV specific recliner will cost double and is no better. And, as already said, the backs of home recliners come off for easy entry.
As for ultra leather. We had in our last RV, a Komfort, pleather and it was super nice and durable. I don't know enough about ultra leather to comment.