Is the use of online questionnaires in the classroom building a unneeded barrier?

The use of online questionnaires is seen by some as a gimmick and an unneeded barrier distancing from one on one teaching and support between students and teachers but is also seen by some as a extremely helpful tool for using questionnaires in the classroom.

The website/app in question is called socrative (www.b.socrative.com) and relies on the teacher logging in and setting up a room for students to log into on laptops or through their smart phones and tablets, they are then offered the option to answer a question set by the class teacher.

The argument against this is that it dramatically takes away the use of one on one teaching throughout the classroom. The amount of time it takes to set up versus the time it would take to pass out a hard copy of the questionnaire is a point to look at.  The way you can see the students react with the question in front of them is a much easier way to decipher how they are getting along with the subject matter.

Although through this specific site/app you can see who answered what and give them feedback regarding their answers it seems a bit like its technology for the sake of technology, using it for the sake of using it, the direct need is not there for this website, in my opinion, face to face answering and feedback is much more of a learning tool than looking at selections on a webpage.