Apple make great computers and in recent years have made significant in-roads in mass-marketing their products like iPods, IPads, iPhones etc. So one may be forgiven for thinking that ALL their products are good. Not so. I ordered this Time Capsule together with my iMac earlier this year, hoping to keep things simple for compatibility's sake.
The Time Capsule is touted by Apple as being both a wireless router and an external hard-drive. The first surprise upon unpacking it was when I found that there is no on/off switch. This would have been irrelevant if it had adequate cooling and ventilation. The truth is that it becomes very hot and one can't help thinking all that heat generated 24/7 can't be good for the innards of the thing. Indeed, the average life of a Time Capsule is 18 months according to web-sites actually dedicated to the demise of your valuable Time Capsule! Pulling the mains lead as a way of shutting it off is merely storing up trouble for the future, since this tends to create short-circuits and wear and tear on its hard drive. The adverts make a great play about its ability to back-up every hour. If you do not have it on all the time, it will alert you when you plug it in, that it wants to do a back-up from scratch which can be inconvenient as you have to have your computer on for a few days until the back-up finishes. It seems you can't turn it off without it starting backing up from scratch.
I also mistakenly assumed this Time Capsule (TC) would provide a medium for copying my iMac's hard drive onto. However, it provides only restoration of individual files and folders. So, for example, if you've accidentally deleted an important saved letter, you can retrieve it using TC. Another plus is that if you accidentally lose your internet settings, it is relatively easy to restore the TC without too much hassle.
But after six months use, I still haven't figured out how to use the TC as a stand-alone wireless router (addendum*: modem). I may be confused here. When I say wireless router, I mean like my Netgear wireless modem/router to which the Time Capsule is currently connected. I was under the impression I could use the Time Capsule to replace the Netgear router. Another misunderstanding ? I welcome any light shed on this subject.
With the acquisition of Apple's new operating system, Lion OS X, I desperately wanted to clone my Snow Leopard OS on to an external hard-drive in case of problems with the new operating system; I could re-install Snow Leopard if Lion proved problematic. After a bit of research, I got the Iomega minimax external hard-drive and with this to compare to the Time Capsule, I can honestly say TC is so much more inferior as a means of backing up. I can now back up my files on to the mini-max using Apple's time machine as well as cloning my entire iMac's hard drive. Since I've owned the Time Capsule for the last six months, I have managed to accidentally erase my back-ups on it with no sufficient warning(s) given and now it is 'hanging', trying to connect to my computer's hard drive. So it's become useless as a back-up. (I will try to get it up and running if only to make the most of whatever short life it has left.)
As a serious back-up machine, this model (2011) needs a lot of improvements and upgrading to match that of other manufacturers like Iomega. If I knew what I know now back in February '11 when ordering this Time Capsule, I wouldn't have included it with my computer. I'm sorry Apple, but as much as I love your other products, this falls far short of your usually high standards. Either make a better router/back up machine, or keep them separate. In conclusion as a consumer, you are much better off buying other superior (and cheaper) brands like Iomega if you just want a means to back-up your material.
*Update* 11/11/11. So I finally cleared up my confusion, ironically by (accidentally) buying a Belkin router WITHOUT a modem and as such needs connecting to a modem. And so I checked on Apple's online store and lo and behold the Time Capsule is a router only ! As a result, and because my wireless devices are operating successfully using the TC, I have uprated it to 3 stars. Where I've stated 'router' in my original review above, I have now inserted 'modem' as well. However, I still stand by the downsides as expressed which, in my view, still apply.