WAC is great for GSA campaigns. It fills in all thous annoying fields and has the ability to gather a large amount of articles and spin them. The software isnt hard to run but its not very intuitive. I did have to watch the videos a couple of times to figure it out. Also, the teir 1 content isnt that great. It is human readable, like I can read it and it doesnt look spun. (mostly) But if you read the whole article, it generally doesn't make sense. But this is all dependent on settings. For example paragraph spins or sentence spins.
Would I recommend you buying it? Depending on what your going to use it for. Honestly, for the price and the non reoccurring fees, I like it.
Would I use it for t1? No way in hell. Its great for setting up t2 campaigns that require large amounts of unique content.
I would defiantly go for the premium edition, the API addon is worth its weight in gold. Its a huge time saver when it comes to setting up GSA campaigns.
It does have a built in spinner, so you can manually spin shit if you want. But I personally dont waste my time hand spinning spam. If Im gonna spam some shit, im gonna do it the old fashion way. (dirty and as unique as f***) Also, I dont have the patience to write the same article 10 thousand times. Personally, I would rather write 100 articles about different stuff.
But to each their own.