They're fantastic.
If the Kemper was a modeller and the Mesa Triple Rec "Amp sim" was Ola's Profiles, you need look no further...it would be the best Mesa amp sim on earth...IMHO. 
Same with the Till's 'Recto' Profiles...game, set, match.
Ola's Profiles.
https://dl.dropboxusercontent.…20Mesa%20Triple%20Rec.zip
