Right, HackRF is not going to cut it if your building a cell phone repeater. But for home/hobby projects it's pretty good. I own a LimeSDR. It's not just the hardware, you also have have good software drivers. Everything open source in RF pretty much uses GNUradio, and there are endless problems trying to get LimeSDR working with GNUradio. Just read the message boards for LimeSDR. The first thing lime tells you do so is install Pothos which has zero support in open source community, so good luck. I wish it were otherwise as I said I've spent a lot of time fiddling with my limesdr