I use a Sekonic L308S, and think it is great. It may not have the little frills of the L-358, which IMO seem very unnecessary. I can't think why I would need more. The L308S is easy to use, and it reads the flash to set its level, what else could we need it to do?
One possible exception.. the L308S is Shutter Preferred only. So if you might use it for regular photography in daylight, you might prefer Aperture Preferred, I would. But I don't, because my camera meter does that fine, so I only use my meter for flash. Flash is Shutter Preferred by definition, so it does exactly what it should.
We can do one light trial and error, but we do need a flash meter for multiple lights, to set the their levels relative to each other. For a one stop ratio, maybe we set main light to f/8, fill to f/5.6, and background to f/8. Then you know what you have, but in particular, you can repeat the setup next time very easily, and very exactly, very quickly.
One trick. Set it to read in tenth stops. You can only set the camera in third stops, but we know 1/3 is 0.3 and 2/3 is 0.7, so that's easy. We can set the lights to tenth stop precision, but the big deal is we can do the math in our heads. How much is 1.3 stop less than f/10? It is about f/6.3, but who knows that? But if we read this as f/5.6 plus 3/10 stop vs. f/8 plus 6/10 stop, then we easily know 1.3 stops in our heads, immediately. Totally trivial to do in our heads.