I also use BeerSmith and can say its a very friendly little program to use. The user screens are much clearer than some of the others. The only (minor) drawback is that its american and so it doesnt have many of the english ingredients in it (e.g it doesnt have maris otter pale malt in it lol) . Having said that, its no bother to put them in once you dig out the details for each ingredient and its not missing that many.
It does have quite a good section of calculators with it too. :thumb: