I like that it is very easy for me to use little snitches so my computer stays clean even though i am using torrents etc. It also has many different options which are helpful when figuring out what programs are trying to access certain files/websites. There aren't any downsides at least not ones that would stop me from recommending it. The only downside could be if you're new to computers then maybe some things will seem confusing but with time everything gets easier. If someone was having issues finding viruses while downloading stuff through their browser (or just general browsing) than little sniffer helped them greatly by letting them know exactly where those problems were coming from and how to fix them.