I have tried the beta and RC-1 5600, and neither of which is totally reliable. Major hardware and software compatabilty issues(lots). However, I must digress to say it is a very stable platform with very user friendly interface and excellent graphics. In short; "A WHITE ELEPHANT". The con's are very significant, and my advice to the novice user would be wait 6mo.'s- 1 year before considering an upgrade. If your hard drive is close to full, and you do not have a back-up HD do not consider it without first upgrading your hardware.
THE MIN. SYS. REQ.'s will not let you function at a normal level. Even with dual core and 4gb I have found it to be slower than XP, or XP x64. Vista Ultimate will require nearly 10Gb free space on your HD. The load is 750Mb RAM with 525mb page file usage. Unless you purchase a NEW computer with Vista pre-installed, or are an experienced USER I would reccommend against it.
I have been custom building computers for over 23 years till I retired. Note: I still perform these duties but in limited fashion.
My main question is this...Is VISTA reliable and bug free.
In the past years I always considered two (2) questions when recommending/installing an operating system for a computer. First, who is the manufacturer and, second, how long has the os been on the open market in retail form - not ugrade form.
In the past, if the manufacturer was Microsoft and the os has been on the retail market for less than a year, I refused to install the new operating system. This procedure usually led to my customer having a much more reliable computer. When the new OS finally became reliable - when Microsoft finally got a majority of the bugs worked out, then I would reload the customer's computer with the new OS...at no additioinal charge.
Usually, in my experience, it takes Microsoft about 1 year to get enough patches developed and available so that the operating system would work reasonable well. Now, with Microsoft's unofficial announcement, that they are not performaning beta testing themselves any longer, I will have to assume that the wait time will probably be longer.
So far, I have not read of anyone addressing this issue...The reliability of Microsoft to release a RELIABLE and stable new operating system.