Well,
Thank you for you opinions but I did not come here to create a flame war 
, that was not my intention. My intention was to get actual feedback from users that actually have seen/owned or tried the product. I also said that my other two alternatives were K70 and a modded K95 (with browns). I really like the all-aluminum feel and browns are a must (they suit my taste well above others). Considering my most used keyboard so far is a Logitech DiNovo edge (which for a membrane keyboard is insanely good, quiet and with a decent tactile feel, although since it's a wireless one you do have occasional wireless connectivity hiccups).
I am also open to suggestions, if you can find (or happen to be aware of) a decent keyboard for under 170 euros that sports an all-aluminum frame, has brown switches and media keys I am all ears!
Well, as a store which has sold a few units of the Colada and K70, let me say this. The Colada is a good keyboard. We've never had any technical fault with any unit but it is a pretty new model so make of it what you will. The top enclosure is aluminium and of all the keyboards we have on display, users are drawn to the Colada. There's a distinctive 'feel' to it.
The purple coloured USB hub / audio pass through is a bit clashing on the silver edition but looks fine on the anodized black version. It has been reported that the audio pass through can struggle when plugged to an older machine (something to do with the gain on older integrated sound cards or so I'm told). Given how much it costs, buyers of the Colada don't generally have that problem
The K70 is also a very good board. Unlike the Colada, the aluminum is not an 'enclosure' and more of an exposed backplate design (nothing necessarily wrong with that, just personal preference). It comes with a comfortable, rubberized palm rest. We still have some customers comment on it's unique design but, by in large, the Corsairs have 'done the rounds' and although it's appearance is unique, it's not nearly as 'fresh' as it once was.
Now, let's talk price. The Colada is very expensive, there's no other way to describe it. Whether the user thinks it's worth the price or not comes down almost entirely to whether they value the aluminium enclosure or not. We are on good terms with Tesoro, (the Colada is a Tesoro product, MAX Keyboards tends to rebrand Tesoro products as their own, don't ask me why this is, I don't know either), and what Tesoro have told us is that the high cost can be attributed to molding the enclosure exactly to shape as opposed to a simple flat-plate based design like the K70.
Because of the price of the Colada, we have a policy of not recommending the Colada to our customers unless they ask about the demo unit or they are looking for something in that price range. The only return of the Colada we've ever had was a change-of-mind from a customer in his late 'teens. Although he claimed otherwise, we suspect his parents were less than impressed with this particular display of independence in buying such an expensive peripheral
