Guitar Amp on SP-404 MK 2 - How useful for (new) players?

Next to a bunch of other cool sampling and FX-functions, this device also has amp simulation. What are the built-in amps on the SP-404 MK 2? How does the device fit into your life as a new or progressing guitar player? How to access the feature? 00:00 Intro 00:16 Setup 01:19 Adding Amps 02:51 Amp 1 03:33 Amp 2 04:46 Amp 3 05:30 Amp 4 06:06 Amp 5 06:49 Amp 6 07:18 GAIN! 08:51 Looping, FX 11:06 Outro