Hmmmmmm finished Punisher earlier, while there were more action scenes it all started to feel a bit Meh by the end, with Castle taking inhuman punishment yet 24hrs later running around unaffected by it with the same thing happening every episode. I guessed the "bad guy" twist very early so it was no surprise, although I feel thats more due to poor script writing than my detective skills. I also felt there was quite a lot bit of, well frankly unnecessary sex scenes which didn't progress the story and just felt tacked on as "well we need to be TV for adults like Game of Thrones" type thinking, although the Homeland Security actress is stunning.
Also, and this is a bit military geekiness so feel free to ignore it, but Marine Force Recon (of which Frank was a member) aren't classed as "Special Forces" within the USSOCOM chain but MARSOC (Marine Corps Forces Special Operations Command) is, which is the sort of problem you get by not letting someone in the military look over the script to clear these issues up before they make it to screen. The same also applies to Franks "preparation" before engaging the "enemy" as he has nothing other than guns, yet a properly written SF character like the comic Frank Castle would have got trauma kits, support tools etc as well as just "Guns, Lots of Guns!" but as I said, this is all military geek stuff which will be missed by 9/10 people.