YES - that is what I have! I actually have 3 of them all in a row.
They work great for us. However, I did start this when they were young and confined to a room for most of the day, so they picked up on it really fast.
Here is the only problem (these still gotta be one, right

) - TJ still does like to pee all sorts of ways. Most of the time, he does go into the box and pee. - BUT - he will also pee down the center (lifting his leg) or if he is in a real rush (for what, I have no idea) he will place his front paws in the box and lift his leg and pee down the front lip or on the side.
So, for TJ protection...I line the floor under the boxes with wee wee pads. With just a tiny bit of the pad exposed to catch any missage pee. Also, sine the wee wee pads I have a just a bit too big for the box. I keep the front flap folded under (only in the front) so that when TJ decided to do he front paws only, that pee that slips down the front under the pad (inside the box) is also caught by the padding that I folded over.
Hopefully I didnt confuse you - the box is definitely better, but you may still have to do some sort of cleaning (like the box)