Not intended aggressively, but unless you have a particular reason to take the exam, why do you want to do the HSK anyway? Level 4 on the new test approximates to Level 1 on the original, so the first three levels are tremendously easy....

Hanban has added the extra levels to try and suggest conformity with the European Common Languages Framework, but the result is that the easier levels are not practically very useful. Unless you have a specific goal in mind with the test, why take it? Or... why not push yourself to level 4?