OP said "Broadband speed go faster". If this is referring to the throughput that you can get on 2 separate lines paired together when comparing performance with and without this solution then I would suggest the OP is probably correct (no experience myself but others seem to agree that it can improve overall speeds).
Don't believe the OP said it was making the connections faster as of course a software solution outside of the network could not do that. It can though make better use of the connections by some clever trickery around load balancing.
EDIT : after seeing you latest post, no it wouldn't make 178Mbps go faster than 178Mbps. However, by load blaancing correcting you may be able to more effectively use the bandwidth so without any solution you might only make use of (for arguments sake) 120Mbps but with the solution could increase to 150Mbps (hypothetical examples).
Edited by ian72 (Mon 04-Aug-14 14:13:09)