'Nother aluminum bike here
It's held up to my abuses far better than I anticipated, which is pretty impressive as I had high hopes to begin with lol I trail ride it a lot and ride every day, rain or shine - I even had a buddy wreck, sending the bike cartwheeling down the pavement and the frame was fine (wheels & handlebars were toast tho).
There is one thing to look out for with a motorized aluminum bike however and that's chafe. Because of the constant engine vibration, any unguarded contact points will wear quickly. You'll just need to pay a little more attention to where & how you route your cables and anything/everything that's attached to your frame should be snug & secure.
Which isn't such a bad idea anyway