I just ordered the CXS after a couple years of agonizing over whether I wanted to invest in still another battery platform, but that 90% adapter finally hypnotized my brain ...so now I have 12 and 18v Milwaukee, 18v Fein, 18v Festool, and now the 10.8v. I have the Milwaukee 12v drill, hammerdrill, driver, impact driver, recip, oscillating, and rotary tools and at least 8 batteries. I use the 18v hammerdrill, 1 1/8" rotary drill/hammer, 6 1/2" steel cutting circular saw, grinder, right angle impact driller, original impact, new hydraulic impact, blower, trimmer, and 3/8" drive impact...and the led lights. I have the Fein cordless Supercut and the new drill driver. I also have the HKC and three batteries. Trying to ignore the comments that say the TSC 55 seems more powerful than corded 55.