I personally don't like digital trims... (and that really is a PERSONAL preference)

Its partly because I'm VERY used to using the mechanical trims.

I like having the mechanical trim (rotates a portion of the TX stick's gimbal) for ease of changing trims as the aircraft's speed changes. This mainly applies to the elevator, trimming for holding level flight. I also use the throttle trim lever a lot in setting 85% power high speed cruise (full stick, minimum trim) and locking in full throttle trim when I'm doing touch-n-goes.. to prevent accidentally throttling down too far, killing the engine.

I like having the trim levers visibly offset after the aircraft's first flight... so am reminded of what control surface's clevice(s) need to be adjusted. (Always try for mechanically centered and 0 trim hands-off level flight.)

Remember... when setting up the plane with a computer radio, initial settings should be done MECHANICALLY for correct throws, (computer set at "base" of 100% ATV) and fine tune with the computer. Try to not have adjustable travel volume settings go outside the 90% to 110% range. Its better for the servos, and better for the aircraft's performance.

Its "good engineering practice" to mechanically reset the control linkages for all trims to be neutral at level cruising speed for hands-off flight. (gee... I keep saying that... maybe its important...)