u/Fit-doc5620

Hi everyone
I will be visiting Georgia for the first time with my GF for 6-7 days , we are planning to visit Tiblisi and other cities like Kazbegi , Katshi , kutaisi and may be Gudauri or kakheti if time allows
I was wondering if it is better to stay in Tiblisi and arrange day trips or that wouldn’t be practical for some cities and I need to book accommodation their.
And is it better to rent a car and drive to the other cities or better be arranged with companies like getyourguide
Thanks