I've used Oceanic Deltas and Alphas, although I don't own them myself. Very good regs, very reliable, and considering their reasonable prices, they are value for money. Same deal with their BCs. Just look around, check the features, try them if you can, and choose what works for you and has what you need.
I've never tried the Zeta, although I've been curious about it since I first saw it in last year's ADEX in KL. That's the first review I've read of it; thanks for the info.

To think, I almost bought it because it looked cool, they were practically giving it away at the ADEX, and even though it was new and untested, I figured, Oceanic has always made good products.
Their computers are excellent, too, and very user-friendly. Just make sure the model you get has the features you need, for example, the nitrox capability.
Another customer service+ story about Oceanic. A friend of mine also bought a Data Plus and it flooded; he wrote Oceanic and complained, and told them how disappointed he was, as it was a new product. They gave him a new one, AND a DataTrans Plus!

Made ME want to write Oceanic.