Age 43 & interested in CO2, but unsure which laser is best for my needs (2018 Halo treatment underwhelmed). I know a skilled user is more crucial than the tool, but heard certain CO2s are better for tightening/smoothing upper & lower eyes. Secondary concerns: barcode lines, moderate wrinkling, tightening, sunspots & pore size. MUCH prefer a single intense treatment to a series. Is 5-7 day recovery doable or longer for substantial improvement? Is spot treating just eyes/mouth ok?