I've sailed and owned a 1979 Lancer 30 for 6 years. Mine has a traditional interior layout. V-berth forward, salon midship and head/galley aft.
Things I don't like about the boat: low headroom inside <6' at most places; offset prop shaft, 5 1/2' draft, nasty weatherhelm. The offset prop shaft is very anoying as it angles slightly to starboard of centerline. When motoring, the boat is constantly pulling to starboard. Maybe its just MY boat, but I think its a design "feature". The winches and mainsail traveler are mickey mouse but not a problem. You may need to install a bow roller for the anchor chain and relocate the two sheet winches further aft if you have a wheel helm. I moved mine about 20 some inches aft since they were originally installed for a tiller helm.
Otherwise, she's a good old boat, cheap and easy to sail for a single-hander, and sturdy hull.