WTAI is a solid fund. Not much else to say other than the fact it's just a broad based AI fund. You're getting exposure to 70-80 AI companies, with a lot of the top end hyperscalers being the largest allocated in the fund. If you're looking for single click exposure to the entire industry, it's solid. Fees are decent for a thematic fund as well at 0.45%.
KraneShares, at least from my perception of them, used to be a fund manager that focused on China. So, I'm kind of surprised that they've expanded. But, these small fund managers rarely make the headlines so I realistically could have just not heard about them expanding outside of China based ETFs.
The whole humanoid area of the market is one I am not all that familiar with. If you are into that space and want to invest in that space, this fund seems to have decent exposure to it. This is a VERY niche ETF, with it just being humanoids. If you wanted to go more broad based, could look to BOTZ, which focuses on humanoids yes, but also does everything else from robotic surgery, industrial automation etc.