Got one on the Speed4 (can't have Scottoiler for some air pressure sensor reason or something).
Easy to fit. Does not need adjusting with temperature change like the Scottoiler. Can use any oil (I use Scott oil as I have some for the Fazer anyway).
Wire it into the lights and it (if you ride with lights on) it turns on when you ride and off when you don't. You can turn the lights off if, say, working on the bike with the ignition on, so you don't get a puddle of oil.
Only two down sides, IMHO, over the Scottoiler.
1) "the final bit". The Scottoiler drips onto the sprocket and then this is flung onto the chain. The PD oiler uses a sock like thing to 'brush' the chain. I prefer the Scottoiler style (easier to set up and to keep an eye on) but I can see no reason why this cannot be changed on the PD oiler (just me being lazy!).
2) no add ons for the PD Oiler to make it longer range and touring capable. The PD oiler can do 750 miles, so only really applicable on tours.
Very well build piece of kit and a bit smaller than the Scottoiler so can be hidden under a side panel.
![[Image: 5039410397_ea80148ed2.jpg]](http://farm5.staticflickr.com/4152/5039410397_ea80148ed2.jpg)
(Pic was before I tidies things up)
Given the choice, I'd probably put on a Scottoiler, but the PD oiler does have advantages (cost being a big one). They both keep the chain (and bodywork/chain guard/tyre if not set up right) oiled so would not rule out a PD Oiler if needed on another bike in the future.