I downloaded and installed it one PC (I have two) and I won't be installing it on my second. From a users point of view with little technical knowledge, I found it in comparison to IE6, bloated, slower and with too many add ons (gadgets). The anti-phising thing is already starting to annoy me.
The browsing in tabs is Ok though.
Having said all that, given that I use Firefox, 90% of the time anyway, I can safely ignore IE7 from this point on.