My first advice would be to hang with the Classic & Vintage crowd -- you have an older bike, the information will be better, and the responses here will be friendly and helpful rather than dismissive/judgmental.

The only thing that C&V will require of you (the de rigeur price of admission) is PHOTOS. Hey, there's a "show off your Japanese bike" thread that's going on right now!

From a cursory Google search, you probably have a bike with a Shimano 600 group -- that's very good equipment, at the time 2nd in line to their super-expensive Dura-Ace. I don't know anything about Univegas frame-wise (tubeset, or other esoterica), but a frame with that component group probably was not what's referred to here as "gaspipe" -- it's likely to be fairly lightweight.

Univega was one of several Japanese manufactured bike lines that were popular in the 80s and 90s, and Japanese bikes have their adherents in this forum -- they were, by and large, a great value, and a lot of them had very nice riding qualities.

Take and post some photos, and you'll get a lot more reaction and advice. Also, let the forum know what kind of riding activity you think you're interested in pursuing (long recreational rides [solo, small or large group], commuting, going for groceries, looking for more bikes ;-), etc.), because that has a lot to do with what you might do with the bike equipment-wise, if you have an interest in that direction.