Kirbyvacuum, the suction is okay, not the best, but not the worst. I pulled it apart and sealed the motor compartment and noticed a definite increase in suction. I also put on of those cut-to-size motor filters in the bag compartment to help "filtration" and it seems to do an okay job. Kinda wish it had a turbo nozzle instead of the thing it has now but wishers can't be beggars or whatever! Great for bare-floor cleaning.
Right now I do not have any Kirby's, I've worked on a couple and can honestly say they're not my type... but they're still great vacs!
Kenmore81, it's actually the 300 but I have no clue what the difference is! That thing has been through many wars with our cleaning ladies but it's still going strong, no parts have had to be replaced, the brush roll is still the original single-row brush row with nice red bristles... I need a new motor bracket to hold it on to the baseplate, but luckily it's not on the side that connects to the suction tunnel thing.