Excellent service and products. I use Kennards self storage every time I move (and I move a lot!!). They have a wide range of boxes for all packing and storage needs. I particularly like the archive boxes. They're compact and very sturdy and not too deep so you can pack your breakables without them swimming in a huge box. Also great for books. Customer service is friendly and personable. Office is neat and clean. And a bonus is that KSS buy back boxes that haven't been used, or that are in really good shape (with no rips or tears). I'm sure you could find boxes that are slightly less expensive elsewhere but the quality and life of KSS boxes are worth paying a little more for.
Highly recommend.
Tip for driving there: Can only be accessed on left side of Goodwood Road travelling South. If you are coming from the south down Goodwood Road, you'll see the store on your right, just before Daws Road, but you'll need to turn down Daws Road and then right again on to Goodwood. Or find a place further up on Goodwood Road to do a u-turn.