I feel it is my duty to reply to this as i have experinece with both products, firstly i had a Roadlok, as far as i am concerned it is an overpriced disclock, I installed it on my Busa, within a week my Busa was gone forever! just lifted onto a truck and gone.
So last year i got a new Busa, and while on vacation i found a Xena lock it is an XX lock, Damn it is loud. So when i got home i put it on my Bike and then it made a defening beep, (stand back). if you move the hadlebars or try and move it the alarm goes off, damn it's loud. Even if i forget it is there, as soon as i try and take the bike off the stand it goes off. My lock dose not look like the one you show.
Anyway the xena has already saved my bike, we were at The South Pine motel, at sturgis, and some ****ers tried to lift my bike but as soon as they tried it the alarm went off they ran off before i got out there. Worth the $100. i paid for the lock..BTW i got it in France have not seen my model in the US.. Roadlok waste of money!! it is an overpriced disc lock.... Sorry Roadlok!!