I don't think you'll be disappointed. My e2's were such a better performer when it came to reducing engine noise than my active cancellation headphones. Plus they were easier to carry around, and more importantly, I could sleep with them on and not feel bothered by some clunky plastic ear muff.

The only thing is that it may get a little bit of getting used to when first inserting them in the ear, and as some have already mentioned, it takes practice and make sure you insert the correct side (half clear, half black is on the right and all clear is on the left - if you got the clear ones).