Yes! I am really loving mine.
Very well made and you will get updates from Archos as they fix problems, which is more than can be said for the Chinese knock-offs. Archos are rapidly fixing problems as they are being reported, they have already released 2 firmware upgrades since the device was released a few weeks ago.
There is a very active support forum at:Forum.ArchosFans.com - Index page
where you can get find out how to side load Google Market and Flash.
There is also an XDA forum for Archos so we can hope for some goodies from these guys:
Archos Gen8 - xda-developers
If you buy one now it will come with Eclair (2.1) but you should update to Froyo (version 2.0.71 or later, don't accept 2.0.54) almost immediately - before you install new the Google Market fix. You can do this over the air once you have charged your device and established a wifi connection.
I showed mine to an iPad owner yesterday and I thought he was going to offer to trade me. Suddenly that iPad looked big, heavy and expensive.
The one thing you cannot do yet is root the device, there was a temp root hack that worked with earlier releases of the firmware but the current release has not been rooted yet. However, if you really want to mod your device then Archos provides an SDE (Special Developer Edition) that allows you to do pretty much whatever you want (including dual booting Linux) at the expense of having your device marked as out of warranty.