Well.. that depends.....
I have owned an E-100 for three years now.
I have used it for just about everything. Here is my opinion:
If the ONLY mic you have in an E-100, it's an "OK" mic.
The transient response of that mic is sllllooooooowwwwwww. In other words, for vocals, it seriously lacks air and transparency.
This is NOT a vocal mic. Repeat after me.. "NOT a vocal mic"!
This is GROSSLY apparent when comparing with other condensor microphones. I now do all my vocal tracks with a Studio Projects C1. The difference is not just night and day. To me, it's the difference between even recording the vocal or not. In my opinion, the E-100 was far too unsatisfactory for my liking for any tracking of vocals at all. This is the reason I got the C1. It literally got to the point that I lost interest in recording vocals.
Now, let's talk about what it does well. It DOES work nicely in an
acoustic guitar mic setup, more specifically, in a stereo mic setup. I use the E-100 pointed at the 12th fret, and a large diaphgram condensor (C1) behind the bridge pointed towards the rear strap holder nut. The combo of these mics works nicely. Gives a nice stereo image. The E-100 by itself in mono on acoustic is passable, but the transient response tends again, to be too slow for that really "smooth" high frequency sound that I am after.
On a Kick drum, it is AWESOME!!. This is what I honestly believe is this mics' true calling.
Bottom line, if you don't mic kick drums ,and your interested in vocals, do yourself a favor and pick up a C1 or T3. You will be MUCH better off.
If you REALLY want a E-100, drop me a line, and I'll sell you mine
Cheers,
SH