As far as i can comment, reliability wise RoHS didnt turn out nerarly as bad as expected, at least for us.
Now with around 15 years of data, it did actually improve on nerlay all units (that were made a good time before 2001 so there is any data to compare with). Reasons probably being that the adjustments done on the soldering process (such as inert gas reflow/wave soldering) actually did more good than Pbf solder/Components did harm.
Stuff made is used in general and also high-rel industrial, sometimes high vibration (such as railways) use. So it can be done. Just not with the cheapest possible materials and poor process control.
As for repair/bench work: Replaced that old Ersa with a JBC station and it works just as well as before at the same temp setting. Just if something needs to be resoldered repetedly, lead based solder seems to work better, with Pbf solder it needs to be cleaned off and freshly soldered after 2 or so times. Its terrible to work with bad solder (such as Sn99,7, or anything with bad flux) and cheap soldering tools (just forget anything old or cheap, it wont do)