Hiplok D1000 here for my Vado 5 IGH. Lock is very heavy but fits on the rear rack so that’s no issue. If it’s as strong as it says, I’m pleased with it.
The downside is that the internal dimensions are small, and because the bike is big & heavy, manhandling everything close to the rack to fit the lock can be a pain. If I was buying now, I’d look closely at the Litelok x3 - seems to have the same strength but the bigger internal dimensions would probably make it slightly easier to fit. 8-week lead time on orders though…