>>2843511I have a lot of experience with the XA25 which is basically the big brother to the G20 (as far as I know). Very, very good cameras and do decently well in low light for the price factor. Really loved the fold-out screen as well, but I'm not sure if the G20 has an OLED like the XA-25 does.
The main issue I ran into is the highlight rolloff outdoors and the lack of built-in ND filters. We shot football with the Xa-25 and white helmets turned into glowing white blobs. If you're going to shoot in daylight, you might consider shooting in the shade or using a scrim to lower the amount of light.
Make sure to use the zebra bars which help prevent you from overexposing.
Really though you don't have much to worry about. Very good cameras.