We have been recommending the ChefSteps Joule circulator as a Top Pick of ours since it came out. That was based on the specs, its performance in the benchmark tests, and Gary's hands on use of it (as shared in his initial Joule review).
Once the testing and initial reviews were done it went into my stack of circulators so I could also get some detailed hands-on testing with. It took me awhile to get to it since I was in the middle of recipe testing, but once I did, it's been my go-to circulator. Here's some of my thoughts on it.