EDGE can get you up to 1 Mib/s. Even if we just take 400 Kib/s as a sustained estimate, that's about 3 MiB/min. It's not a fun experience, but most of the times, it's enough to eventually load the site you want.
(Source: Where my parents lived, they only had EDGE for a really long time, until LTE was deployed.)
(Source: Where my parents lived, they only had EDGE for a really long time, until LTE was deployed.)