The Dyson is indeed the king of the category, I own a Dyson V15 Detect and it is great. However, bare in mind the category has a pretty low peak. Warranties are short, repairability is flaky, batteries always fail, and even at the peak build quality isn’t there.

For reference, I also own a Sebo X7 which is a considerably better machine. However, it’s heavy, awkward, and a bit of a chore to use. Since getting the Dyson, I am vacuuming much more which says a lot about the advantages. Honestly, from now on I will probably just buy the best cordless Dyson available (within reason) and use it until it breaks and hope a better BIFL solution comes out in the meantime.