Very Good Product, but...
I have had my SGT 7 plus for about a month, and it is my favorite of our five tablets, which include a Nook Color, a Xoom and 2 Transformer 102s; all of which have ICS. It works very smoothly and has all the power I need. However I do not do intensive gaming.
The screen image is bright and clear, and aside of a few force closures, most likely caused by apps mis-behaving, I have had no problems with the stock Honeycomb OS.
Regarding the negative comments about TouchWiz, I feel it has some nice features, but I do not feel the hidden app tray on the bottom of the screen is as handy as it would be if the apps were selectable (if they are I have not figured how).
In response to the comment about TouchWiz consuming a lot of power, I personally have not found that to be the case. To me it just seems to be a feature that is somewhat unobtrusively there if you want to use it (although I would be the first to admit I probably am not familiar with all the features).
Regarding power use in general, compared to my other tablets, my SGT 7 plus is very good. In fact, if I just close the screen, it barely sips power. Of course I am sure that is, in part, because of the way I have it set up.
There are a few things that I wish were different; such as the lack of a stand alone USB connector, and the use of a proprietary charge/usb connector. But to me that is really nitpicking in the overall scheme of things.
The only serious concern I have is the impact the soon to come out SGT 2 7" will have on our getting ICS in a timely manner. There is no doubt in my mind the SGT 7 plus is a better tablet, and an excellent value when bought at the $299 or less sales price even with the Honeycomb OS.
However, it does not have ICS, and presently there is no concrete information as to when/if Samsung will make it available; and, in my opinion, ICS is a much better O.S, so availability of ICS for the SGT 7 plus is a very important consideration in deciding which tablet to buy.
In my opinion, holding prospective and recent customers in limbo in this manner, as Samsung is presently doing, is a terrible way for a company to do business. There is no doubt in my mind the SGT 7 plus is a better built tablet, with more features than the SGT 2 7", but if the SGT 7 plus does not receive the ICS it will be limited in utilization of the new software being developed, and therefore may be basically obsolete within a matter of a couple of months.
Personally, although I love mine, if considering purchasing today, I would wait another month or so to see how this scenario (ICS update) plays out.
Hope this is of help to you!