Received the kit from QRPPROJECT and assembled it in about 3 hours, following the clear intruction manual.
Just plugged it to my antenna and a 7 amp battery and the radio was working perfectly.
Till today after 4 months I have used it almost every day achieving arround 400 contacts on SSB and CW with only 5 watts.
53 countries in SSB alone with a maximum distance to Argentina of 10000 Km just using an End Fed Antenna 12 meters long for 40, 20 and 10 meter bands.
QRP is really the way to go for me and the Elecraft KX3 is the right tool to have fun.
Jose Carlos Gomes