You've got an SL, so the AmazingE won't charge at the fastest rate possible. I have an SV, so I purchased a Zencar 32A EVSE to get close to full charging rate:http://www.e-zencar.net/product/evse-32a/
That product let's you choose several amperage presets, giving you the flexibility to charge on either 120V or 240V supplies too. I use mine at home on a NEMA 10-30R at 240V@24A rate, which is almost full charging rate. Works great and the electrical hookup was cheap too.
Have a look at the Dryer Buddy product line (there are several models) so you can share the dryer outlet with your EVSE and dryer:https://www.bsaelectronics.com/collections/dryer-buddys
There's also this product, but it's kind of pricey and not sure what shipping charges would be in the US:http://ober-ev.com/products.html
Since you haven't purchased an EVSE yet, the ÖBERCHARGER would make the most sense.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV