The chaps mentioning your monitoring choices have very good points. If you’re not running things for live use ever, the Kemper looks the best fit. I run a Helix into a custom monitor. There isn’t another one and cloning it will be prohibitively expensive. I also run my Helix straight into the desk. Nevertheless if running into a desk or using headphones were all I was doing I’d opt for the Kemper, but I wouldn’t bother with the floor. The floor seems built for live use - in some respects form follows function and that reflects back form. I can see the point of the Kemper floor, but I can get my Helix to where I want it to be given my rig. Also my ears are probably a lot older than yours will be, so I may miss top-end intermodulation effects that some folk with bat ears can pick up. But my ears are trained, and I have decades of studio experience which help me tuning my kit to my satisfaction. Try them both. Find a chum to lend you one for an afternoon. But as a caveat; if customer service and support are important to you, and the general ecosystem the device is part of matters too, then I think the decision flips. In this Line6 are really very good indeed. They are the market leader and pretty much the optimal model for service and support delivered by a modern company. If you have a problem Frank or one of his associates will help you out. The chaps at Kemper and Fractal care too; but Line6 just appear to have a longer reach and surer touch. If you really want to know, someone like Fremen or Glenn can make any of the modellers/profilers out there sound utterly brilliant. If you are used to using the real thing or, if listening through phones, are used to hearing monitor mixes either may suffice. Workflow matters. If you have engineering experience, the Helix may be more to your taste.