i like the slot on my iBook, it works flawlessly, looks better than the tray as well. On the other hand, trays do have some advantages, but I think that when it comes to laptops, slot is the way to go, less moving parts to break (I broke the eject machanism on one of my PCs before by hitting it with my knee when it was open... you now have to pull the tray out manually as it *just* pops open [and push it closed as well]).