64 kilobits of fury, or 128 if you could get a bonded connection.

I remember the joy of being able to stream a 112kbps MP3. Pure amazement

That also meant you had to pay for two connections at once, and it was not universally supported among ISPs (AFAIR, at least).

I had business connection over a 128Kbit ISDN upstream to UUNET which cost $500CAD/mo.

Within five years you could get a 1Mbit cable connection for basically $100CAD/mo.

ISDN had a brief but glorious reign!

I got a call from an ISDN salesman desperate to makes sales. The place I worked didn't want an ISDN line but I sure did. My place in Brooklyn barely had phone service but I got I think 2 64kbit channels and a 9.6kbit a channel for an around $100. The a channel couldn't be used but the b channels each represented a single phone number. Digital TeleMedia was the one ISP in NYC trying to offer static IPs over ISDN lines. We used Ascend Pipeline 50s and I was using MailShare from Glenn Anderson and Chuck Shotton's Webster.

See that Glenns project died just a couple of years ago which is sad if I had Known it existed I would bought a license. I just checked and I'm happy to report Chuck Shotton is sill at MacHTTP.