CougarLife was founded in 2006 which makes it a very well established age gap dating site. Other recommendable age gap dating sites like Cougars69 were launched much later which makes CougarLife the most experienced site.
That being said, before you decide to use CougarLife you need to be aware that it comes with a high price. You can join for free but that free membership limits you. With a free membership you can pretty much just browse the site. Recurring fees and a credit system make this site more expensive than other age gap dating sites... at least this is my experience. Good news that the site has many active members. I have no idea how large their member base is but I also don't care. It is not important for me that a site has 'millions of members across the globe" when I need to find someone in my area. In other words, I don't need a site to have five million members in Africa when I need a date in San Francisco. That is one of the main reasons I've used this site. There are not many sites which have as many members as CougarLife, well, I am sure no other site has as many members for age gap dating. But now let's talk about quality because I have seen many frustrated reviewers pointing out that CougarLife is a 'Scam'. I believe and I know it is not a 'Scam'. I have met many women using CougarLife. Period.
Conclusion is that CougarLife is a good and reputable age gap dating site. Only site which comes close is Cougars69 which is significantly more favourable and also a big recommendation by me. But you can unhesitatingly use CougarLife provided you are willing to spend a little time using it. Good luck!