I wouldn't have used the word "meh" to describe it, but I think that it's a valid point to consider: why would I consider switching from Guzzle?
My attention is caught now that I see a composer.json. Friction is limited. Now what?
It's meh because it's meh... The package is limited... I can do more by taking a few minutes to write my own curl wrapper than add this to my composer.json file, composer install and then not have what I need... I see in the issues/pull requests someone fixed a basic necessity and it was closed as "fixing this soon" instead of merging it... That right there isn't good.