The road is mostly good but has a number of big potholes so slow down when necessary. I saw someone make it to the parking lot in a low-clearance sedan.

The trail is in great shape and the views from the top are very rewarding. Lots of wildflowers out right now. The creek crossing is not for the faint of heart but I felt secure with hiking poles and good water shoes. Be prepared to get your feet wet and trust the footing. Thanks to everyone who mentioned this in their trip reports so that I was able to come prepared.

I started early on a weekday so I had lots of solitude up top but I passed a fair number of people on the way out.

This marmot buddy of mine let me get within 10 feet. Found the perfect rock for my lunch stop close to the glacier. Great dayhike.

The road is rough in places (and fully paved in others), but with some careful driving most cars will make it to the trailhead. We arrived at the trailhead on 10:30AM on a Tuesday and found the primary parking full (people had done that typical thing where there is 1/2 a parking space between every car...), but still good options along the side of the road. 

As others have mentioned, the second to last stream crossing is running high. I don't think it is possible to cross it without wading. Hiking poles will be helpful. 

Arrived at trailhead at 8 am on Sunday morning, only a couple of spaces open in parking lot, but lots of parking along the road.  The road is mostly paved but lots of pot holes, if driving carefully road should be OK for all vehicles.  The bathrooms were very clean with lots of toilet paper.

Few people on the trail at 8 am, just a few backpackers/climbers coming back down.  The trail is in great condition, thank you WTA work crew!  I didn't have any problem with bugs but the second to last stream crossing is kind of exciting.  Fast water, rock hopping was too dangerous looking for me so I just took off my socks and wore my boots across.  Not too bad.  Later in the day I saw some people turning around at the fast water creek, but most hiked across, some in sandals.

Views were just stunning, this is a wonderful hike, Mt Baker, the Coleman glacier, blue sky!  

Arrived at 10am, made it to the largest stream crossing about 12pm and it was unsafe. Took the climbers route instead, steep but gorgeous views!

The road up to the trailhead was a bit rough with deep potholes. But manageable in my CRV. The trail was good and volunteers were working on clearing parts and adding dirt to areas. There were a few streams to cross. I recommend either waterproof boots (really high ones), change into some aqua socks or bare feet at the stream crossings or be ready to have wet hiking shoes. I went barefoot the first time and the water is freezing. Still got wet but it was a beautiful day and I dried quickly. On the way down I fell into the last stream and got my shoe wet. Wasn’t great but tolerable as I was half way down.
This was a moderate and very doable hike. Right at the raging stream is where I started noticing the elevation. But I forged on and the views were amazing!