Asterisk on Amazon Lightsail - Any Comments?

Hi - I have just started playing with Amazon’s Lightsail service, and am investigating using it for a moderate-volume cloud PBX.

My first test usage involved migration from MeetMe to Confbridge() for a bunch of users, and it seems to be OK… except I’m seeing some clipping of the start of some of the audio prompts. It could be a local network / NAT issue (I’m testing mostly from my home office) but it’s worrisome enough to wonder if anyone else has successfully deployed Asterisk (I’m on latest * version 13, Ubuntu 16.04) on Lightsail?

Thanks in advance,