This was my first full attempt at Dirty Harry's Peak after ascending up to the Balcony a few times in the past.
First, the good: if you're looking for a good, solitary workout, this is a great hike for you. I saw a grand total of zero people on the trail all day, despite it being a Sunday and gorgeous outside.
Now, the bad: The bugs. Oh man, the bugs. I've done plenty of hikes in the PNW but I don't think I've ever seen it quite as bad as this. They start immediately and are a relative annoyance for the first half of the hike. However, once you pass into the old-growth forest past the first big boulder field, they really get ridiculous. Despite multiple applications of DEET, I had all sorts of things flying into my ears.
The trail is relatively snow-free except for a small patch on the top that can be circumvented easily. However, there's a lot of water and mud on the trail (probably linked to the bug problem) so definitely wear your water-proof boots.
Finally, while the markers on the trail are a huge help, the route becomes extremely difficult to follow. I probably spent about an hour of my ascent scampering around trying to find the next marker or blaze, almost giving up a few times. Now I usually don't mind trail-finding, but when you have 8,000 flying things buzzing around your end, it gets old soon.
Once you do get to the top, the views are fantastic although you only get small peeks up until then.