Hi, Meg--The trail is still in good shape, and it's a pleasant
ride. I assume you'll be heading south; leave some energy for the
return trip, which is a slight upgrade. The elevation is gained by a
series of fairly steep, quite short mini-hills, no one of which is a
problem, but collectively they take their toll. This is particularly
true during the five miles below Santa Fe Dam, and the very last mile
of the trail in Azusa. Again, it's no big deal, but pace yourself
appropriately and take food.
As I've written before, the only tricky place on the trail is where
it switches from the west side of the river to the east side, at San
Gabriel River Parkway. There's probably still no signage telling you
what to do; just cross to the opposite side of the river and pick up
the trail again. Most of the locals don't even know the trail
exists, so do your own navigating!
It should be a great experience for you; just writing about it brings
up pleasant memories, and gives me the urge to do it again sometime
soon!
Bernie