As written in another review, the incorrect wiring of the Chip select is quite annoying and results in no smooth out of box experience. I do also not understand why DIO1-DIO5 are not wired to any RPi pins, although they can be used to indicate important interrupts to the system (at least DIO0 was routed).
Despite the design problems, the board works as expected. I was able to receive and send messages after playing around some bit. LowCostLoRaGw doesn't worked for me, but I was able to run the device using https://github.com/tftelkamp/single_chan_pkt_fwd with some package loose, and later using https://github.com/mayeranalytics/pySX127x without package loose.
The LoRa/GPS HAT was delivered timely and appears clean and well made. I received a version 1.3 board when the Dragino wiki says a version 1.4 board exists. Deep in the Dragino wiki ( http://wiki.dragino.com/index.php?title=Lora/GPS_HAT ) is the notice that the LoRa SPI chip select signal is wired to the RasPi connector pin 22, but needs to be connected to pin 24. In other words, THIS BOARD HAS A DEFECT which prevents SPI communication unless you control the chip select via GPIO 25 (pin 22). The fix is easy enough, if you have a soldering iron. The GPS powers on and obtained a "3D lock" (blue LED) while this board was in my basement under a 2-story house with a radiant barrier (foil-lined) roof... impressive reception sensitivity. I have not yet read data from the GPS.
If I had received a version 1.4 board and the LoRa SPI chip select was wired properly, this would have earned 5 stars. However, I would expect a better notice about the wiring defect and lower price because of it.