We went up via Teneriffe Falls and Kamikaze Trail. Really like this route.
We came down via normal Mount Teneriffe trail, didn't like that. However, it got within a mile from Mt. Si, so we climbed the Haystack before returning to Mount Teneriffe trail to go down.
Current condition: no snow along Kamikaze Trail. Waterfall is beautiful.
Lots of snow the upper 300' to Mount Teneriffe, and the upper mile or 2 on Mount Teneriffe trail.
Being so close to Seattle, this is a very crowded trail. I counted 60 cars when we left.