Whichever mapper you use, it's not so bad if the materials are left in 'default' positions. It's when everything gets 'optimised', shuffled around, shoe-horned into corners...

Yes, I get reduced to incoherent despair when trying to mask glass, glows etc etc from a mega-map that looks like a 'Mondrian'...

And I still get flashbacks to the patient hours spent hunting a 'My Little Pony' eyes...

My usual tactic, before reverting to a sorta-binary-chop to localise said parts, is to try each style of mapping by turn, see if anything looks familiar...

Also, agree with Blender's UI issues. That, like DS and GIMP, gives me a prompt migraine...