I am getting very slow download speed on my FTTH internet connection.
OSXUpdCombo10.10.2.dmg 2.6 MB/s - 468 MB of 802 MB, 2 mins left
What
download speeds do you guys hit?
By the time I'm replying this, I believe your download should have completed.
Most of the time the internet subscription does not really play a big factor on the download speed be it fiber broadband, cable broadband or ADSL: a decent 8mbps plan is good enough - usually depends on download server. Since this update is newly released, I'm guessing the amount of download from users globally is causing the slowness but it shouldn't be that bad seeing you're downloading it at 2MB/s which is a decent download speed.
This is especially common when there is a new version of OS X released to a point that download keeps failing/interrupted and get corrupted and users have to download several times.
To answer your question, I used Mac App Store for this update and the whole process took about 10mins.