I'd definitely suggest practicing keeping him in formation. Biggs is a terribly important part of the Rebel fleet, because he can soak up damage that would otherwise hit his wingmates. You do need to keep him at Range 1, but with enough practice this can be done quite easily. I have been using a Wedge+Luke+Biggs, and I wouldn't dream of going without Biggs. Wedge+Ibtisam+Biggs is just as viable.
Range 1? You want him at Range 3, so he'll not die as quickly.I believe he meant range 1 of the friendly ships so that his ability activates. Properly flying Biggs you want him at range 1 of friendly ships and range 3 of enemy ships. But keeping him at range 1 of the friendly ships is probably the most important and the easier of the 2 things to control.