Well, that honeymoon didn’t last long.

The approval rating of Microsoft’s CEO Satya Nadella, once in the stratosphere, dropped by 20 percentage points this year before recovering slightly last month, according to data provided by Glassdoor, a Sausalito, Calif.-based online jobs and careers website.

Glassdoor regularly measures hundreds of CEOs by asking employees posting on the site whether they approve of their chief executive, much like U.S. pollsters quiz voters on the President’s performance.

For each of the 10 months since Nadella has been CEO — he took over from Steve Ballmer on Feb. 4 — Glassdoor had 60 or more company reviews and CEO rankings from Microsoft employees. While the CEO approval was a simple yes-no, up-down vote, the company reviews were based on a five-point scale.

To read this article in full or to leave a comment, please click here