I use the H4n for exactly the same application. Usually I'm just recording our practices in normal stereo mode using the built in mics. I import the wav files into reaper then eq them and trim out the unwanted sections, label the songs, convert to mp3 and send them around to the band using wetransfer.com.
But sometimes I record in 4 track mode where I use the built in mics to capture the room sound and I take a stereo feed from the mixer board to capture the vocals on their own tracks. This gives me a lot of flexibility to eq and change the levels of the vocals in Reaper later.
A few points to keep in mind:
- experiment with where you place the unit in the room. I find if I mount the H4N too high I get too much cymbal and if I am in direct line of fire of one of the guitar amps they take over the mix.
- to increase the volume of the vocals you can position the H4N facing the lead vocal monitor. Its a good way to ensure you'll be able to clearly hear the vocals even if your guitarists or drummer is playing too loud.
- Make sure you remember to use the pause button to start and stop recordings rather than just leve the recording on for the entire session. It becomes very time consuming to have listen thorugh and edit 2 hours (in my case) of band practice to get to the 10 minutes of music that is worth sharing with everyone.