This is a great swap when done right and nothing but problems done any other way.
I assume you have done the research and know that this is NOT a bolt on swap. There is precision machine work that must be done to the head to make it line up with your block.
Also the biggest problem people have with this swap is that it is still an ls bottom end and therefore still MUST use the ls redline. The vtec head provides better high rpm breathing but the ls rods are not capable of lasting at those rpms.
Unless you have lots of money to throw at this thing you would be much better off just putting in the whole B16a and running that.