I had a lift (Rockler) for my 1617 below table, but it drifted on height, so I sold it. Replaced it with a Triton TRA001 which has a built in above table crank, so the lift is built in. It is really nice to be able to adjust height without having to bend over. Remember that the 1617 has a fine height adjustment, but the coarse adjustment means un-clamping the mounting cam lock, sliding the motor up or down, and holding it in place to close the clamp. If you have old hands, the twisting and pushing up at odd anbles, this isn't much fun. I think it is also much easier to have a lift to crank the bit up/down to fit the positioning jig.
A dedicated lift as well as the Triton allows you to change height the full range of height adjustment, including putting the collet above the table for easier bit changes. Harry Sinclair was the member who convinced me to get a Triton, confirmed by watching the Marc Sommerfeld videos.
I know that some members leave their mounting plate loose and just lift the whole thing out to change bits. A few people may be using the Bosch fixed base as a lift, using a Bosch key to adjust height (withing limited ranges), but this key is really just an extension of the fine height adjustment below the table.
With the Triton, you still have to reach below the table to hold the shaft lock in and to set the safety interlock, but neither of these require any force to speak of. I use Sommerfeld matched bit sets so changing bits is really easy, particularly since I got a twist lock insert mounting plate.
If you are happy with another method of height adjustment, no need to change. But once you use a lift, my bet is that you are unlikely to go back.
BTW, Sommerfeld makes a star shaped jig for setting bit height for a number of their specialty bits (yellow). They also make the Easy Set jigs for select Freud bits. (red) Either is just $30 on Amazon and well worth it.
The more I do, the less I accomplish.