The 'Ikale Tahi believe they're on the right track six weeks out from the start of Rugby World Cup.
Tonga have the next week and half off following a busy Pacific Nations Cup.
Tonga finished with wins against Canada, USA and Japan following a narrow opening defeat by Fiji.
High Performance Manager, Peter Harding expects performances to keep improving.
"We know the quality of our group and we know that if we have enough time together we can win matches. This has just basically confirmed what we've long believed. We need time together, we need matches together and we go alright if we get those two aspects of it correct".
Tonga will face Nottingham and Romania before kicking off their tournament hopes against Georgia.