Re: Perks, can we have too many?
 

I suppose that depends on the culture of the group and GM. I certainly don't mind when a player reminds me that they have Danger Sense. Though I will admit I often note down things like Danger Sense and Perception levels so I can roll them secretly without the player knowing.

Appearance and Voice tend to be easy to remember, as players tend to emphasize this in their descriptions.

Re: Perks, can we have too many?
 

They give a few minor bonuses to add flavour. The most I've had on a character yet is my gunslinger and he's got, six, I think. Most of it has to do with enabling him to spin the guns and open doors without them going off... the biggest one is the off-hand weapon training one. But, if you do it right, they all become more or less one package after you've used them and begin to make sense.

Re: Perks, can we have too many?
 

The group I play among would be paralyzed if we were held to this standard as GMs.

I think we see ourselves as engaging in a collaborative effort to make the game events feel true in relation to the input plot points -- ie. it doesn't matter who points out that Jimbob's Acute Hearing should give him a bonus, as long as afterword you don't end up asking 'Hey why didn't Jimbob hear that'. That last eventuality is a failure of both GM and players together IMO.

Re: Perks, can we have too many?
 

I use a GM control sheet, and try to remember everything, but I don't mind the players reminding me that they have Danger Sense, acute hearing and what else. I'm a person, not a machine.
Most of the time I manage without the players needing to say anything.

Re: Perks, can we have too many?
 

But... Then the GM might actually have some fun!

Re: Perks, can we have too many?
 

There's no GM fun in GM Vs. Player wars.... um roleplaying.

Re: Perks, can we have too many?
 

Edited for broader application and endorsement. :)