Hey, I have had one for 2 years now, the original "Long Range" version, and love it. Have used it out to 1200+ yards. It comes with an extra antenna and you have to make sure that the antenna is perfectly aligned to your shooting spot though, at that distance, to get a decent signal strength. Inside 7-900 yards, it works fantastic. Have it hooked up to my iPad and battery easily lasts a whole day.
Takes a good 4-5 minutes max to set up at your target spot, and once you use it once or twice, you get a good idea of best placement.
I also just bought the newest long range version which is much less hassle and fiddling with, and does not need the extra antenna hooked up to it, so hoping this saves a bit of time and fusing. The original is very easy though to work with too.
The program really does work exactly as advertised too. Shows last shot and will record whole shooting sessions if you choice to.
The only issue I have with the original version is that there are lots of wires/cables running between the battery/camera/antenna/modem, and although you don't have to plus and unplug them, with repeated usage, will they start to fray or crack? The newer version eliminates that.
Ask me anything else you'd like to know.