Wifi spectrum analyzer

What is a recommended lower cost wifi spectrum analyzer? Before I buy, I wanted to see what brands the forum is using. How about these two brands?

RF Explorer Model WiFi Combo (Touchstone software) from nutsaboutnets.com

Wi-Spy DBx (inSSIDer Office software) from metageek.com

i currently use the

inSSIDer Office + Wi-Spy Mini by metageek

they are the same of wi-spy dbx but this is the cheaper alternative as far as i know, beware wispy mini is only 2.4ghz

the inssider for office software can work with wi-spy-dbx to support 5ghz band but the software has less functionalities than chanalizer