I’ve been recording by miking my Fender GTX-50 and just this week have tried this cute little Yamaha THR-5.
The #1 most important thing to know is that some models in any modeling amp are very noisy, and others very quiet. Some of the effects in these amps are also very noisy.
Make sure you listen to your miked amp carefully, and listen for noise. Choose the quietest models. If a model is noisy enough to actually register on your interfaces led meters. stay away from those models!