I've been living in Tbilisi for about half a year now and I can safely say I despise it. ;^)
It felt like living in a courtyard.
I somewhat expect that when it comes to the rentals here, for short-term that is. Especially with how old a lot of the buildings are. The other day in Vake one huge Soviet era building caught fire and the entire rooftop collapsed and the entire building cannot be used for the time being. Homes here are either old, or heavily neglected. A few more modern places being built around Vake and Saburtalo.
The prices for those rentals are insane though, especially when monthly rent here ranges from as low as 350 dollars. Mine is just $400 in Saburtalo.
How did you find the traffic/Americanisation with how car reliant the city is? Things are even more chaotic lately with the protests going on.