I have a Clipper Creek HSC-40 and I really like it. I do not have the Juice Box networking, but I don't think I need it. The HSC-40 is capable of providing a lot more power than your Volt will draw, but as many people on this site would suggest, it is a good idea to future proof in case you get a full BEV in the future.
I previously had a Blink networking charger which sent me emails about when my car was plugged in, unplugged and fully charged. It was neat at first, but I do not feel like I miss it now that I have a Clipper Creek. The networking feature of that blink charger stopped working after 2 years, although it did still charge my Volt.
D-3664, 2013, Blue Topaz
Bose, Leather, safety 1&2, chrome wheels
Retired Air Force