ten issues I have with ingress

0:00 10 passive xp
Unlike Pokemon Go there are no way to outsource experience points. The closest thing is portal scans.
0:54 9 no warning when portals reach zero
There is no warning when the portal reach zero, since there is a high likely that there one that important for you. I recommend having an option to tell you when portal is low.
2:06 8 remote play
Remote play is not good since it the drone hack. Double radius from pokemon go will do.
2:47 7 overclock
It takes a while to unlock in Ingress Prime since it required a lot of scans to unlocked. Even if you meet the scan criteria there no guarantee that overclocking will be unlocked.
3:29 6 lack of mods to recharge for you
The lack of mods to recharge for you is terrible since your schedule could be busy. By having a mod (with the option disable and enable it) to recharge the portal on your behalf.
4:09 5 maintenance of portal
Sometimes it expensive to maintain portal since it base on levels and time. Levels I'm referring to both the access level and portal level.
5:00 Honorable mentions
Control fields sometime don't register as one. As sometimes when I built one it doesn't register as one.
5:52 4 badge assisting in leveling
Badges are something you needed to level up your account.
6:36 3 chaotics matter unit
Chaotic matter units are currency that is use to buy things. Maxing it out by having it behind research bounty is nice.
7:16 2 research bounty
Too similar to Pokemon Go. Outside the backstory and events there little usage for it.
8:03 1 key
Keys are important to creating links. It sometimes take a while to get enough keys to created multiple links.