Hi,
We're planning on going to Sofia for a short easy going holiday (emphasis on laid back vacation). We can't decide whether to go 3 nights (which would be 2 and a half days of actual touring) or 4 nights (3 and a half days of actual touring). It's a short flight for us (2 1/2 hours) so there won't be any jet lag. We're not planning on day trips like the Rila Monastery.
Thanks for your input.

If this can be of any planning assistance, here is my report, a little old by now (2012) of my city break to Sofia. Happy Planning!

36 Hours in Sofia

Thanks. I know that Sofia is much more advanced today and has become more modern than what you encountered. But I understand that it is still that interesting combination of East meets West.