I enjoy playing a 5 string even though I play it very much like a 4 string, I occasionally use the low D and Eb and very seldom below that, but that would depend on the type of music you play, you may be needing those low notes. The reason I went to 5 was at the time I was doing quite a bit of theater work requiring a lot of reading mostly in flat keys, having the low F on the 6th fret B string makes reading those kinds of scores a lot easier, there is a much bigger range of notes under one position.
If there is one tip I could give it would be to allow yourself quite a bit of time to get used to 5 strings, it can take longer than one would realise, it's not so much the extra string it's that the E string becomes the reference point, for me it did, now that string is a B and open E is like the A string. I found it quite easy to play what I did on 4 string on the 5 when I was in my room and I could concentrate, it was on the gig when I had to make a quick shift that I would often go to the wrong string. It comes right eventually, I can switch from 5 to 6 string quite easily but 4 to 5 string for me was a big learning curve.
Good luck with a five.