I think the Jeep Cherokee's are ok for daily drivers,not the greatest fuel economy with the straight six 4.0.but you'll probably never kill one--all they ever seem to need for parts is water pumps and radiators,some of the P/S fluid tanks liked to crack easy,and the fan on the engines act up sometimes,but thats about it..
You see thousands of them around here from the 90's on up,but I'd stay away from the later ones after 2000 with a V-6 or the crappy V-8's ,those also seem to have many electrical issues..
True they are unibodies,but if your not going to do any off roading that isn't really an issue--despite heavy salt use around here,most of the Cherokee's I have seen on a lift have practically no rust underneath,even old ones,but the rockers and wheel archs will rot out eventually..the rear shock mount bolts like to snap off in the weld nut,making repair a pain,my friend does a lot of those..
Two words make your request tough-- "cheap and reliable"...a Subaru might fit your needs,but they aren't cheap to fix if and when they break down,but they are pretty reliable..
I dont like their timing belt setup much personally..bent valves can result if they jump time,and they blow head gaskets sometimes too..