How is usted pronounced?
oo-sted with the stress on the last syllable. Also the d is between a th and a d so just move your tongue a little bit forward.
Yes. I discovered that a while ago. I quite like it. I hope they keep expanding upon their recordings.
In eastern Spain, where Catalan and Valencian are spoken, it tends to sound like "ustet" (oo-stet).
In Madrid and around it many people, when talking informally, will avoid completely the last consonant sound and pronounce "usté" (oo-steh).
In Andalusia and many places in Latin America, the S becomes aspirated, like a very soft h: "uhté" (ooh-teh) or "uhted" (ooh-ted).