Just finished my secong tour of Mallorca on this 80s beauty. Some really rough stony MTB tracks included. No problems and very comfy. fast and light enough for me, 501 tubing. Paid £40 for the bike and spent £26 on new tyres and Shimano block. Don't think I really needed to though.
http://www.flickr.com/photos/23172121@N07/2219310876/
Jim