I ride a Z1 SL on my Enduro and my brother rides a TALAS on his. The little info I have on the TALAS is based on the small amount of time I spent riding it around the neighborhood, up and down curbs and through the rocky field by my house that I use to tune my bike, just so you know. Most of the common issues like how much taller and heavier (1lbs) the Z1 is have been covered in the review so I will not mention those.
Yes, the Z1 is kinda hard to tune but is in no way close to impossible. Most of the reviewers had a hard time to tune it because they didn't know how to get access to the right air chamber. All you had to do was twist the ECC knob to full on but a lot of the reviewers didn't get that and unscrewed the knob

. But the three chambered Z1 will always be harder to tune than the TALAS with only 1 air chamber.
One thing I noticed on the TALAS is that it had some stiction but it wasn't that bad. I only noticed it because I zip-tied it and noticed that it didn't react to some small bumps at slow speeds. Looking back at it, maybe I had the lock out and threshold set to something so check with someone else for that.
Plushness-wise I think the Z1 will always be better because zoke's have very little compression damping and other than changing oil, there is no real way to change the damping on the Z1. You could use the ECC but most people find the in-betweens unusable. I feel the same way, even the 2nd from full-open position compromises a lot of plushness and is too slow for my taste. But, if you're the type that's willing to mess around inside their fork, then you'd be plenty happy with the zoke. Changing the oil to your liking will make the Z1 an unparalleled performer. Changing to a lighter oil will also make the ECC more useable, but you'll have to increase the oil height to compensate.
Here's a link that should be very helpful for Enduro and Z1 SL owners:
Enduro/Z1 FR SL page
lotsa links there it should be helpful even if you're still deciding
*phew* I think that's enough for one post. Hope my two centavos get you far. I have a couple more pennies I might add later.