Thank you for that advice Richard, no doubt I will have questions as I get stuck into what it can do. I will put a micro usb stick in there as you suggest and any other tips to a new user are welcome.
Gary, I will most certainly be using my TVS3 from the off, with the Vox AC15 profile, just to hopefully hear that magic of the Vox/Meazzi combination. I was pleasantly surprised of the sound of the TVS3 with the Spark amp.
I am of course always interested in whether or not a device is capable of delivering the echos and accurate timbres of the vintage kit and I will be exploring that avenue. I have heard some demos on Youtube of people using the delay and it is very encouraging to say the least, but it all depends on which parameters are editable whether or not it could get close. I collect the Kemper Stage Profiler on Sunday, so I'll know more after then.