If yearly subscribers can give a temporary key to friends and family for limited hours, this will help to bring a new audience for Pure VPN and also sharing a month invite doesn't work for everyone as they don't understand its use at that moment of time.

A clear UI show the fastest server for each country if you have multiple VPN servers in multiple cities of that country.

The IKS does not work with any other protocol than TCP. With TCP works great and reconnect always in time when the internet connection is active again.

With AUTOMATIC protocol, with UDP and with IKEV protocol, does not reconnect if the internet dropped(usually with a "No internet connection found" error).With wifi on or data on is the same thing.

The features you should add are...maybe shorter term special sales, 3 years for the price of 1.5?

There should be a disconnect feature that disconnects the network connection when a VPN session terminates or resets but doesn't auto connect.

Another great feature would be the ability to bond different connections together (e.g. ethernet, Wifi, Cellular) to send the ip packets through these channels concurrently. This:
a. increase bandwidth,
b. reduce hiccups,
c. and enhance security as it would confuse statistical analysis of traffic.
Indeed, it is for these reasons, and it's fantastic application, that Speedify has become my VPN of choice.

If all these three features get implemented, I believe you would end up with a very formidable service, way ahead of the crowded competition—as you would offer greater responsiveness, speed, and security.

Speed & the quality

Improve UK server capacity ..... add more servers and increase server performance

It can happen that those websites are experiencing slowdowns. It would help if you set up a service where a user can check if the website he is trying to connect to, is experiencing problems on its own as seen by users in the same country. It would be useful to be checked against a service in the hosting country aimed at verifying the speed we are going to.

super private connecting with 2 or more VPN yours. I think that could be interesting to create a browser web specific to PureVPN

SPEEDS and more inputs for Cities! I suggest under larger cities like Chicago, LA, and New York (the 3 largest cities in the US) you have more connection nodes for each city.

selection of specific servers where ex. filesharing/streaming etc. are optimized (not where the ping is best but where the speed is considered best) based on your specific need.