Been there 2 months after the terrorist attacks on the beach, for Xmas, stayed at Sidi Bou Said.
It was weird. No tourists, we saw 7 other foreign tourists during our visit of the souk, where 90% of the shops were closed anyway, we had the Bardo museums and the Antonine baths for ourselves, literally (that was fantastic). We had a 5 course Xmas lunch alone in a deserted, massive 5-star beach hotel, no other clients, we had 15 waiters looking after us. Foreigners were not allowed to venture outside of Tunis (for their own safety), it was a bit of a special time and atmosphere.
Didn't get harassed or hassled, but it was so dirty, litter everywhere, people were strange, not very friendly, visibly afraid to speak their minds, my EXH’s VPN was messed with, relics of the Ben Ali regime where everyone was spying on each other. Food wasn’t great.
Not a country I would go back to, even in better circumstances.