Best USB NFC reader for Raspberry Pi

Hi,

what's the best USB NFC reader for using on a Raspberry Pi?

I have an ACR122U and it's really hellish, sometimes interface can't be opened

[nfc.dev.acr122] failed to retrieve ACR122U version string
[nfc.clf] no reader found at 'usb'
[main] no contactless reader found

and sometimes gives a timeout.

[nfc.clf] searching for reader with path 'usb'
[nfc.clf] using ACS ACR122U PICC Interface at usb:001:007
[nfc.snep.server] snep server bound to port 4 (MIU=1984, RW=15), will accept up to 1048576 byte NDEF messages
[nfc.snep.server] snep server bound to port 16 (MIU=1984, RW=15), will accept up to 10000 byte NDEF messages
[nfc.dev.acr122] listen mode is disabled for this device
[nfc.dev.acr122] listen mode is disabled for this device
[nfc.dev.pn53x] [Errno 110] Operation timed out
[nfc.clf] [Errno 110] Operation timed out

I'm using pyusb 1.0.0a3 and libusb1.0.0 and a USB powered hub.

I need a good reader for using with p2p/llcp purposes.

Cheers!