Looks to be almost midway between a T-105 (220 AH) and an L-16 (370 AH)
I've never understood the theory that it will take longer to recharge really. As long as your daily use is the same the recharge time will be similar. The advantage of a larger bank is you will be using a smaller percentage of it and therefore will experience a much greater number of cycles before battery replacement. You will gain economically as the gain in cycles will more than offset the additional cost.
Due to this one of the best things you can do to a battery bank is increase its size.