we have 2 (loved the 1st so much, knew we wouldn't last a week without one
....so now we have one for upstairs, one for down). we currently have 1 golden retriever & 3 cats (2 long hair).
our "older" dyson is prob about 5 years, & just as great as the day we bought it
suction has not decreased
at all.
we went thru sooooo many vacs before getting a dyson (hoover, eureka, panasonic, kenmoore, etc) ~ they
all lost suction within a year. when you consider how long dysons last (& actually keep working like the first day!), you're spending a lot less by not buying a new vac every 2 years or so.
and you save on bags & belts.
even vacuuming up the stray sock, etc is no prob: the "joints" are easy removed to declog it.
the only downsides (which i really don't think matter, just including b/c
everything needs a downside lol) are that they are heavy & it can be a challenge to figure out how to change settings (e.g., carpet vs bare floor).
we would never consider another brand after owning a dyson