I don't know that's pretty apples and oranges to me. If you want a solid amp that can also serve as a pedal platform for your Helix, the BJr. IV is a great choice. The AC15 is not as flexible as a pedal platform, and it is pickier about pedals. To be sure, the classic Vox tone is awesome for a lot of folks, but that needs to be the reason you get one of these. Confused about your comment about verb, doesn't the Helix have a ton of verb options so can use without needing to add another dedicated verb pedal right? I don't have a Helix so maybe I'm way off base.