MARSHALL JCM800 20W Studio | As good as the 100W Amp?

Check out the JCM800 Studio here: The 100W JCM800 is one of my desert island amps. Can the 20W version hold up? Full signal chain below. ⬇️ 0:00 Playing 10:36 Talking ============== SIGNAL CHAIN: GUITARS: Fender Made in Japan Modern Jazzmaster Gibson Les Paul Custom Gibson Les Paul Classic Custom Gretsch Richard Fortus Falcon: Squier Strat PEDALS: Friedman Golden Pearl: Maxon OD808: Boss DD-500: AMP & CAB: Marshall JCM800 Studio: Cabinet: Suhr Pete Thorn 2x12 w/ Celestion Creamback 75’s Microphone: Shure SM57 & Neumann TLM102 All into: Universal Audio Apollo 8p, Logic Pro X Shopping for gear? Do