[larrik]

I replaced an 2001 or 2002 Intellimouse with a Sensei a few years ago. Then it broke and I got a warranty replacement (upgraded to the full model). Then THAT broke and I replaced it with a Logitech (which is fine, although I spilled coffee all over it).

Meanwhile, the Intellimouse is still 100% functional in my laptop bag.

[andrewla]

I lost one Sensei to a persistent squeak of the wheel, but the one I have now has been working for me for a while now. I still have an Intellimouse in fading white-to-yellow but it's like having a classic car -- I'm not willing to take it out for a drive.

[brianprovost]

My Intellimice last for a few years but eventually either the rubber coating on the scroll wheel detaches or the left button starts occasionally double clicking instead of single clicking.

I'll try out the Sensei, thanks.

[larrik]

Both my Sensei's developed issues with the scroll wheel.

Otherwise they're really nice.

[ahartmetz]

IIRC mine once had some issue with the scroll wheel that I fixed by removing a dust ball and / or applying silicone grease. Silicone grease is great for lubricating anything plastic.