I recommend to volunteers of all ages regardless of background

I volunteered in this program. I think the program is managed and planned very professionally, and with attention to detail.
The registration fee is much lower than in many volunteer programs, that's why I also recommend this. It does not matter if you have travelled in Europe or Eastern Europe before, or if you speak the local languages or not.
Recommended if you want to get experience and build your CV, or if you want to travel while doing something impactful, making children happy and learning about other cultures.

Phone service was not a problem, and there is mobile wifi in many places. The country is very beautiful in summer. I can recommend volunteering also in other places than near major cities, since there is nature and historical buildings in many places.