I bought a Spectre at O'reillys on an impulse. Seems to be pretty well made. I paid 39.95, so I hope its not a "you get what you pay for" thing. I was concerned about the stock lid leaking, so I did the pipe and filter mod.
I fairness though, There are guys who swear by K&N, and I have been on many forums, this one included, that guys bash them too. So it could be, fair to assume, they don't like Spectre because it's a washable filter. The whole filter thing is subjective anyway.
In GENERAL, paper filters filter more, & therefore, are more restrictive by nature. Washables are GENERALLY higher flowing, so the thought being they don't filter as well.
In the paper vs washable controversy, there is most likely a trade off, and the "practical" ramifications, if any can be speculative, i.e., "I had to replace the " ******'S " at 350,000 miles instead of 375,000.
At least Spectre has SOME propaganda