Opinions needed...what to do with this yarn?

Just received some yarn I have been waiting for. I originally thought a summer tank might be good, but now I wonder if I really have enough and if it will be cool enough (deal on ebay I couldn’t pass up). 250grams, 350 yards…45% merino wool, 49% microfiber, 6% cashmere. What do you think? Maybe I should wait and use it for a winter project?

What kind of gauge do you get with it?
Is it worsted weight?