Tweets updates so frequently and the posts always down. And for a beginner, it's hard to find Twitter followers, you can only follow others. I felt in a dilemma about Twitter.
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Twitter is the good option for marketing but you have to use in right way. Facebook is also good for business networking.
Twitter is all about airing their views and most probably they dont care for others views . If u intend to market u r product try to be realistic in u r approach which makes sense to the targetted audience. If at any point of u r marketiong if they feel its not appealing then u r offtrack. Still it is a good place to market u r product