Using a time trial/triathlon bike on the road
I'm very new to cycling, been riding for about a month since not having ridden for 7 years. I'm mainly riding for fitness as my other day for running one day and then biking the next. I'm currently doing about 10mi a ride for 40mi a week, although I've been increasing that each week. I have a vague notion to try a sprint triathlon in the next 6 months or so but that plan is in very uncertain and early stages.
I've been riding a 1976 Araya road bicycle, and I've been scanning the craigslist pages for good deals. Recently someone placed a 2000 litespeed blade for $500 which I believe is a good deal(please correct me if I am mistaken). From my research I understand this is for time trials and triathlons, but how would it work for everyday riding? Is there anything that would make it impractical or uncomfortable for everyday riding use?