Has anyone used Thunderbolt or USB 3.0?

In the not too distant future I am intending to upgrade from my 2008 24" 2.8GHz iMac.
The new models appear to have gone down the Thunderbolt route which appears to be not very popular with HDs being few and far between and very expensive.
USB 3.0 whilst theoretically only half the speed seems to be taking off and reasonably cheap, and appears to be more universally adopted.
Could Apple have backed the wrong horse on this occasion?
Sorry, I was just thinking aloud, definitely not speculating.
So has anyone used Thunderbolt and got anything good or bad to say about it?

Not personally:
The german computer-magazine c't tested the Promise Pegasus R6 Thunderbolt and found it speedwise way ahead of USB 3.0 and eSATA.
As a RAID-Level 0 with 6 x Hitachi HDS721010CLA332 (7.200 U/min, 1TB each) and MBP 13" 2011 OSX 10.6.8:
Write - 693 MByte/s
Read - 721 MByte/s
Read AND Write - 323 MByte/s
Time Machine -capable and OS X Bootable.
0.8 Sone when active
61.6 W active - 48 W when not used.
Sadly the article is not avaibale other than Printed.
Stefan

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