When we built in 2002, the Electrician installed Square-D QO series. It was the only brand he would use.

For the house we have 400 Amp service consisting of 2 200 amp main panels. The two panels are fed from a single buss which in turn is fed from a 'pole pig' across the driveway.

For the shop there is a separate meter that feeds a 200 amp main, and another 100 amp sub-panel. Both panels are nearly full.

Tom, Before you buy something on sale, check out a quality panel, Square-D. ( skip their Homeline series. QO is much better) As I recall, Home Depot handles Square-D.

Buy quality and spend your money once.