There's this idea in popular culture that he only wrote incomprehensible nonsense, which is just not true, and he's become a punching bag for some people who cannot handle the (somewhat made-up) "continental v. analytic" divide.
I say this as someone who loves both Gadamer and Quine, not an erstwhile philosophical culture warrior.
Concerning Heidegger I stand in the opposite corner of the room: I liked his later writings more and despite having read him profusely, I'm not able to articulate his thoughts like you did by contrasting present-at-hand with ready-at-hand which however pinpoints very well the divide between analytical and continental thought.
You're right to say that he "collapses into a kind of solipsistic logorrhea", and it is pertinent to what we are discussing since in heideggerian terms this should be expressed as "language bringing language to language through language".
An example: the linguistic proximity between explicate vs implicate that is another instance of the ready-to-hand vs present-at-hand dichotomy.