In article ,
says...

Besides traffic advisories, it also means you are in two-way communication
with a facility at all times. Some pilots find this a hassle. It's up to you.
Personally, I prefer to have someone at the other end of my PTT button as
much as possible, and the advisories are useful and reassuring - though I
agree with the caveat mentioned above - the callouts cannot be taken to
replace your own scan for separation. They're not required to give you
VFR flight following - you're supposed to ask "if available". Then, as
mentioned, it's "as workload permits".

G Faris