Pasture was the worst meal I had the year it came out, compared to price and expectation. Trying to be "different" is all well and good, but if the food doesn't taste good, it won't matter what your ideals are. I'd likely go back and see if it's different after 18 months, but there are so many amazing restaurants that open in Auckland every week, it's hard to justify going back to one you didn't have a great experience in.
Places I consider seriously excellent in Auckland are:
Sidart (Tuesday Test Kitchen is great fun if you are adventurous, Kazuya (though it was stupidly difficult to get a booking for a single person), Cocorro, Clooney (I haven't tried it since they changed the menu after nearly closing last year), Depot, One Tree Grill (Friday nights dinner was exceptional but pretty expensive), Bowz, Blue Breeze.
Pasture would be okay if they were around $80 a head but on some days (their pricing varies depending on what they serve up), the price can be over $160 a head just for the food. I've been twice -- the first time with my wife was abominably average; the second time was when my best friend shouted my a post-birthday surprise dinner. My heart sunk when she revealed the surprise was Pasture. Basically if you want a whole lot of overdone, pretentious, and preserved stuff added into your otherwise bland and flavourless food, one can never go wrong at Pasture. I am truly amazed that they are still in business. The owners are lovely people and I don't consider myself a ridiculously demanding eater but they are just taking the mickey IMO.
On Masu: I also agree with you. It's ridiculously over-priced and average. I feel the same way towards Ebisu. Nick Watt's restaurants are mostly mickey-taking exercises in my experience, although Huami has largely been pretty good the three times I have been there.
I find Cocoro a bit over-priced personally as well but they are streets ahead of both Ebisu and Masu in terms of quality. If you haven't tried Inti, I thoroughly recommend it. It's a wonderful mixture of fine food, relaxing yet casual atmosphere and very good service. Cassia's food is spellbinding but the vibe is also a bit low brow and excessively noisy.
Edit: fixed some typos