I take pills already and don’t want to go that route for my ED. Can anyone give me some insight on penis pumps

They work best with a cock ring. Look at options link below.

My urologist prescribed one after my prostate removal surgery.  He was able to save the nerves.  I can still orgasm, but they are "dry".  He said it's important to use the pump daily because it's really physical therapy on your plumbing.  It cost me about $200 for a bare-bones version - you pump it yourself instead of a battery-operated pump.  The ring comes in when you are pumping for consenting adult activities.

You can get an electric one (self contained battery) for under $40 on Amazon.  No reason to spend more than that.  A vacuum is a vacuum.  
.
I worked at a contract engineering place and designed the circuitry for a penis pump for a urologist down in Florida.  He intended to use it in his practice for his patients.  We programmed it with specific pump times and pressures.  

If I want CFS, I will use a pump.

One watch out.  In my case the head of my cock can become to big for those ladies who have not had children or a C section.  All this hype about big cocks I guess is bull.  I would much rather have a smaller head and fuck more.  

Most of the times I will see ladies over 40, so it does not happen very often.  

Good luck.