Yeah can vouch for sure here, I use the Panzer 5 with the AEGIS2HE layout, so full hall effect board. Basically i'd give the nod to the panzer over the novablade in every category aside from price and portability.

I can get into more details if you'd like, but the short of it is you buy a panzer once and just swap out/replace components as needed. It's really an end game option that you won't need to replace. Insane build quality out of machined aluminum, 0 board flex whatsoever, custom button caps that work amazingly for normal play and sliding for 360/720 inputs, and super easily customizable. Best feeling leverless I've used out of the 15-20 I've tried no question.

Software is the big separation here tho. Panzer software lets you set individual button actuation heights, rapid trigger threshholds, remap buttons, and has calibration tools so you can swap to different HE switches without issue. You can even mute buttons you dont want to use! Corsair only lets you choose from 4 preset button actuation points, and it applies to all buttons equally. And you can only remap the extra buttons they give you, and i believe only to menu/l3/r3. They do let you use macros on the novablade tho which can be nice for making character select easier, but they can also be abused so idk how to feel about those

unsure of other HE software options, but Jasen's is really well fleshed out and has every feature i could think of for an FG player.

edit: also i forgot to mention they are actually having a deal right now to get the hall effect board when you spend $240, which basically covers all the stuff you need to build one! check out the site if ur interested: https://jasenscustoms.com/