Generally, an electric is going to be easier to physically learn on because they use lighter gauge strings (0.11 to 0.49 as opposed to 0.12 to 0.53 for an acoustic set) and the neck is usually set up with the strings lower to the fretboard so they are easier to press down. That said, then you have the complication of getting an amp to play thru with all the thousands of options that amps offer in terms of tone. Another factor is the T5Z neck is 1 11/16" wide at the nut as opposed to most Taylors being 1 3/4". No big deal for normal sized hands but can be cramped for long fingers.
I play both acoustic and Strats and usually gravitate to my acoustics cause I enjoy the natural tone of an acoustic rather than listening to my Strat thru headphones cause I live in a condo. The T5Z is presented as a hollow-body, but given how small and thin the body is, you're not likely to get more than a perfunctory amount of tone unamplified. Loud enough to practice lessons on surely, but not enough to really savor the result as well as you would on an acoustic.
Top woods on a T5Z are flamed koa, curly maple, spruce or mahogany. I'd call all of them eye candy cause you'd have to play for a decade or so to educate your ear enough to be able to tell the difference that top woods bring to an acoustic guitar's tone. Koa, maple and mahogany are much harder than spruce so you might have less acoustic overtones and resonance. On a guitar that thin and small I doubt that the top wood is going to affect it's unamplified tone all that much, though I confess I haven't played any of them - I'm just skeptical due to the guitar's Les Paul size.
I'm guessing you have the $$$ to treat yourself to a new hobby and I highly encourage it, but don't fall into the trap of "if I spend a lot for a really nice guitar, I'll be sure to make myself learn how to play it." Guilt as motivation to practice isn't all that appealing. There's no shame in dipping your toes into a 200 series or Academy level acoustic Taylor, then selling it or handing it down to a younger family member one day after you've learned how to play. With a few years of lessons you'll have trained your ear well enough to able to tell the difference in what the amazing range of Taylor acoustics offers and that could be your reward for sticking with it!
Good luck!
