I ride in all weather, every day, and often leave and return in the dark. I don't manage to maintain the chain as well as I need to (I also do 2000 miles a month right now). For these reasons I got a Scottoiler. I had mine fitted by the dealer when I bought the bike new. I didn't get charged for it because they fitted all the extras for me FOC when I purchased a brand new bike (as they bloody well should ). They did a bang up job and it's super neatly done, if a bit of a pain to get to to refill (it's just so well hidden in the seat fairing). That said, having now seen it on there, I could easily have done it myself. I wouldn't waste money on the eSystem, but the old one works a treat. Highly recommended and simple to fit (though the instructions are a little confusing IMO).