You didn't say what year/model Leaf you got but if a '14 or older I might suggest getting your OEM Leaf charger upgraded at EVSEupgrade.com
For ~$300 you'll get 20a @ 240v and either 16 or 12a & 120v, depending on what adapter cable you get.
If you want a wall mount full amp charger(assuming you have the 6.6kw Leaf charger) I'd suggest any of the slightly >$400 30a EVSE off Amazon, occasionally you might be able to find the GE Durastation @ $399(also check Home Depot.com) or Siemens(kind of skimpy 14' cable but if it works it works) for $429. If you want a "smart" or internet connected EVSE Juicebox has them for $549 and includes a nice 24' cable.
As has been said, Nisssan recommends the Aero EVSE but no reason to spend the extra for overpriced EVSE.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a