Great place to visit if you are spending a few days in the Black Forest. Also a great place for a daily roadtrip if you live around the area.
As a tourist, the shops are fun to stop by with local specialties and a great production of cuckoo clocks. As a local, it can feel touristy. That being said, I still go at least twice a month to simply walk around, grab a drink, and sit by the lake...! I wouldn't recommend the restaurants by the lake for something else than drinks, as they - in my humble opinion - overcharge.
It can get quite busy with people when it's sunny and warm. Having been to the other lakes in the area (e.g. the less touristy Schluchsee), I'd still choose to go to Titisee, as the lakeside is more accessible and the town more lively.
The Seerundweg walk is enjoyable and relaxing, but not much to see between a camping ground, the highway and a trail that rarely goes by the lake.
A beautiful lake in the middle of Black Forest area. Very beautiful with ample parking all around it. A definitive stop over place during a drive in the Black Forest region