Should I get the "update" also is it a good update?
Which update? There's a gauge fix (I think it's over at Hovercontrol) that adds a sound fix and more realistic start-up procedures, but the sound effects for the gauge/sound fix are not even close to sounding like a Bell 206. (They are actually from a Bell 205A-1)
There's also an update that'll allow ya to open the rear door. The update's alright'n all, but since you can't see the rear portion of the cabin in the default Bell 206 in VC mode, it kinda makes that update useless unless you wish to see the door open from a spot-plane or tower perspective.