Does anybody have experience with either? Would either of them be decent quality?

I've no intention of dropping more than a thousand Euro on a set of wheels at the moment to be honest but I'm liking the look of these:

Ispiri ISR5

http://www.ispiriwheels.com/ispiri-isr5.html

Z-Performance 0.06

http://z-performance.com/index.php?route=product/product&product_id=85

->Pictures of the Z-Performance 0.06 on an e92

http://z-performance.com/index.php?route=gallery/gallery/show&gallery_id=19

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Ispiri sounds familiar to me, whereas I know Z-Performance is only a few years old but I think I prefer the Z-Performance for their Concave+Dish look and the design of the spokes.

I would be looking at 19x8.5 and 19x9.5 ET35

Any thoughts?