interesting version on how to cross this city. Would you recommend? Or rather chose an other route next time. - (That actually keeps me currently from doing that loop ...)

it's a fantastic route, so quiet, beautiful landscape but has some steep parts.

It's absolutely worth a try for a few more times.

I also plan to ride this route in Autumn where the jungles are in full colours.

yes, I know, but I mean the city crossing in Tbilisi

I'm almost a newcomer in Tbilisi and I just know a few routes. so I can't recommend any alternative, but I'm keen to learn more routes here :-)