Got one
I just received my SP-400. I wanted it as a backup and for use on the ground at fly-ins, Oshkosh, driving around town, etc. I live about a mile from our Class D tower and the reception is great. I'm also above the field by about 300', so the conditions are pretty ideal. When I get level with the field in town, and more than 2 miles or so away, reception is poor, although I can hear planes overhead on approach just fine. I haven't tried it in the air yet, so I can't report on that or the range of the ILS. The layout is nice, really big screen, pretty good ergonomics. It takes 8 AA batteries but I don't know how long they last yet. I'll have it at OSH if anyone wants to take a look. I plan to buy the BNC antenna cord so I can connect it to a BNC connector (to aircraft antenna) on my panel to improve reception.