well if you look at the name, I think:
+5% healing speed per second to a max of +75% heal speed, but when not healing, -5% per second
+35% speed when uber
-25% damage in general (with all weapons)
-25% heal range

75 heal speed per sec? Too OP.
Stock heals 24 per sec when in combat, and 72 per sec when out of combat.
I'd suggest having the heal rate per sec being between those two, regardless of combat state.

For the uber I think it should be a mini-crit boost.
+35 speed when in uber
Uber/minicrits last for 15 seconds.

i thinks that a little too close to the kritskriegs uber, maybe another suggestion for the uber?

I would like to see some kind of speedboost with this weapon

while healing :heal target and medic gain speed based on overheal, max +50% movespeed
heal rate 18 health persecond while gaining overheal 36 per second while under max health capacity

uber :healtarget and medic gain 75% more movespeed. heal rate rises to 76 heath per second

description
+ 15% ubercharge rate
- 25% ubercharge duration
+ medic regains 5 health per second when out of combat
all health related things (regeneration and medpacks user picks up or amputator regeneration.) excluding the healing done with the medgun or crusaders crosbow) now recover 1 ammo per health for the user.


(things in perenthases are not shown in description)

I'm pretty sure Valve puts the stats in.

i think it should give who evere you heal unlimeted ammo( no reloding ) for ten secs

Originally posted by Terminator:

i think it should give who evere you heal unlimeted ammo( no reloding ) for ten secs

Infinite ammo.. just inagine scout with FaN or Soda Popper... lag

+20% move speed on target
+ move as fast as target
on uber +100 move speed + 75 healing +no reloading needed and infinite ammo
-2 uber duration

Here; my idea.
PROS:
+Heals both ammunition and health
+Alt fire places Medics backpack down; thus disabling Ubercharge, but has a constant healing tesla like effect in a certain radius
+Ubercharge gives 250% max ammo, and +100% clip size
CONS:
-50 max health on wearer
-50% healing radius on wearer
-25% heal rate

I would add stats like:
+ Immunity from afterburn.
+ Remove afterburn effect.
+ Adds X% resistance to fire damage.

It's a kind of special stats (good against pyro) but It would fits to this medic gun!

Heres my idea: +5% health regenerated every second while healing,maximum of 25% -34% health on user Heals both ammo and health +2 every second -25%heal rate -25% medigun range ?bercharge gives person being healed +200% max ammo , +40% clip size and 45% resistant to bullets Thats all :) , hope its not too OP.

-10% Heal rate
-30% Ubercharge rate
+15% Movement speed on wearer and healing target.
+10% Ubercharge Duration

Ubercharge: Wearer and Healing target gains +50% movement speed and immunity to knockback and Wearer gains the speed equal to healing target(Not if healing Solly and Hoovy).

I think that'll be cool, maybe should add a little more debuffs and buffs :)

would be cool if it a longer healing range!

the ammo idea is awesome i have wanted a medigun like this. how about you give the heal target ammo and you can still heal but it is reduced by 25%. and on uber you are immune to all ranged sources, but you r not immune to melee.