Just to update the thread, I went with LTA MicroZOTL Preamp with L2 upgrade. All I can say is that the preamp met my expectation. I agree with Mr. London's assessment in his review. I think the biggest strength for this pre is its ability to pull me into natural live sound. It still does have its own sound (all gear does, IMO), but I won't say its veiled or anything like that. A really good highend setup can take a listener to where the music was recorded. So you hear the room and the band. With MicroZOTL Pre in my system, it sounds more like taking the band into my listening space.
I highly recommend it to anyone who is looking for natural live sounding preamp with convenient features.