KK, it is correct, that a premium account helps to get on the top level. But this is not enough. Before you really get to the point, where it is extremely important to have a premium account, you have to be patient and to build up your structures. This is also possible with a basis account.
But let me say (I had a premium account in the past), it is worth it. It is not expensive and you would help wulfman and his little team to develop this game further on. You would not spend money to a million dollar gaming company. You would pay for the love, Wulfman puts in this game and for the efforts he has with it, without being his main income. And the benefits of the premium account are worth it.
That was a commercial.