I don't understand what your project is about, I don't think youve chosen the right strategy. Probably, standard way to attract investments from venture capital fund would suit you better.
Great question, dear friend! IPO is a costly solution which is affordable for companies with high turnover. Our company bets on ICO (TGE) as the mechanism for ICO is less costly and more democratic, available to a wide range of start-up companies, ICO is a good way to attract more investors and to develop our business.