There is a lot of variables that need to be considered. What was the failed boosters rating? How long are your coaxial cable runs? How far are you from the transmitting towers you are trying to pull in? Give it a shot and if it doesn't work keep your receipt and return to Best Buy within the return period. If it doesn't work you may need to buy a stronger signal amplifier but before committing be sure to factor in all the variables I mention above.
Good Luck!

Do not use this splitter on your FIOS network. It is not bi-directional and may cause your MoCA bridge/adapter to malfunction.