Second Chance is a great company. However, I don't really see the need to spend a ton of cash on vest just for the name. I mean, if you are looking for a Second Chance Threat Level IIIA vest, then any vest with that level will protect the same as the Second Chance, correct? There are even new Gall's vests out there which are pretty affordable. There are a ton of vest companies out there which make any threat level vests you want. Also, consider buying a trama pac or even getting a ballistic plate for the carrier/vest.
For ideas on which departments are using what vests, check out this site:
https://vests.ojp.gov/resources/resourcestypesofvests.html
Additionally, regarding this comment "The cons of vests are: EXTREMELY UNCOMFORTABLE, RETAIN BODY HEAT, SWEAT, ETC." I really don't think they are unfomfortable at all. True they may make you sweat more and do act as a body temp insulator, but if this is a huge problem with the temps in your area, just get an outside vest carrier made and wear the vest outside your uniform. These outsdie carriers are AWESOME. They typically can match the color of your uniform EXACT, so poeple dont even know you are wearing the outside carrier. You can get the carriers custom made through a local, authorized. supply company, and I even think more vest companies make the outside carriers, but are a generic S, M , L, XL sizing. Hope this helps.
FYI: I paid $80 for my custom tailored outside vest carrier which I wear on duty.