I had a terrible experience with Blockstream Jade Plus. Firstly, I received the device without the air-gapped USB drive I had ordered.
Second, and more importantly, my L-USDT funds are stuck. I received 500 L-USDT on an address generated in the Blockstream Green app(and Jade Plus hardware device), but I cannot send it despite having the hardware that generated the private key(and no, I have not forgotten the PIN). I have tried it on multiple mobile devices and my desktop. The same error occurs.
When I try to send even $100USDT out of the $500USDT available, I get the error of 'insufficient funds'.
I have raised a support case and will get back to you on whether this issue gets resolved.
First impression: This product feels more like a beta product that has been released into production. If I were you, I would avoid it.