I am new to e-bikes, but not to bike commuting. I commute rain or shine about 20 miles/day. Paved roads and trails. You e-bikers fly by me on the trail, and I think it's time I joined you! I have $4K budget, but could go higher. I have looked at the reviews of the Optibike Pioneer City, Allroad and the Haibike Trekking RX. They look great. So do some of the iZip and Grace models. Any suggestions? I have a garage at home and secure bike parking at work.