I've read a lot of info on here and I'm very thankful for the ones more knowledgeable than me on the 436/536s. That being said, so many members on here have done nothing but complain, complain, complain about these scanners... In my opinion I think they're quality built scanners that like any other product in mass production have some issues from time to time. Yes it's annoying to have problems but I think Uniden has done a pretty good job at addressing most issues in a somewhat timely manner. Some of you guys scream NXDN, DMR, SIREN APP etc. etc. etc. but how do you expect a company to fix/offer everything at once? The siren app is working good on my end, DMR has arrived, we suspect NXDN is next but some of y'all will still complain about all this or something else. Again, I stand behind Uniden's products as I think they're of quality but I know some won't agree and that's fine, that's what makes the world go around. Sorry, I had to get this off my chest. Happy New Year!