Glad to hear you like the 150. It is a lot of fun.

I live in NYC and I don't have a lot of trouble with overload. However,
if you do, then you might consider getting a preselector. You wouldn't
have to spring for the expensive Lowe PR-150. MFJ sells one that others
report to work well with the 150.

I'm curious to know more about your antenna situation. Living on the
23rd floor must present some challenges. How large is the dipole you're
using? If you used a random length of wire, would it have to be
indoors? There are some active antennas you might eventually want to
think about, if you're limited in terms of space.

I'm glad you like the audio and the synchronous detection. These, along
with overall build quality, are the primary selling points of this
receiver. And the 8 hz tuning increments in SSB are great, I think.

Even though the receiver is said to work well with rechargeables,
I've decided not to keep batteries in it all the time. I put batteries
in when I need them; otherwise they stay stored outside the receiver.
Call me paranoid!

Steve