Someone will say "use search, this has been discussed a million times previously" (and it has) someone will say JWT is more proven because it has been around longer. Then someone will say Ashs is just as good and is just as reliable and gives higher HP figures but seems to trade off a little bit of torque. Someone will at some point have a go at Ash. Ash will respond and get all self defensive and have a go back at the person that flammed him. This may or may not go on for a few threads. Someone will tell Ash not to take so seriously everything people say on here cause there are lots of w@nkers. Ash will apologise. Then someone will say "get labree" :)
At the end of it all, yes Ashs ECU is fine, give good power at the expense of torque compared to JWT. Also doesnt run as rich. A remapped ECU wont give you a huge gain in itself but will allow you to safely run lots more boost which is a big HP gain.