Ooh interesting. I highly recommend Sibiu ;) I'm in Bucharest, and probably staying put for the most part, as I'm in the process of moving xD Who knows, maybe Bucharest surfaces on your road map ;)
Yeah, you definitely want to leave them on a high. There's some lovely places in Romania, like Sighisoara, for instance, but after a couple of days or so it gets dull, and you're begging to get out xD Why leave with that impression of the place?
Plans have changed again:D so looks like Romania has to wait a little bit longer...
...but I would definitely love to see (I guess that is a lot, looking at the size of the country!)
Hmm maybe like good food, stop eating before you feel sick? So your keep the good memories...