Gecko's south east asia trip. Good for a solo 19yr old?

Hello everyone!

I'm 19 years old and am looking at doing a solo trip later in the year, August. I have been looking at the Gecko's adventures for a number of reasons eg, age bracket, ecotourism, small groups... I was just wondering if anyone has done a Gecko's group tour?... and if its any good? I am looking at the Epic South East Asia 34 day tour.

I have done some backpacking around Greece, New Zealand and Bali with my family but that's really the only travel I've done. I don't have much experience travelling solo so this is why I'm considering a tour group.

Thanks!

From India xx