After flying my L4P for over 128 hrs I find the flap down speed to be very good, while slow, because you want it slow when entering the airport area and trying to slow down. I put out the first part of the flaps at 160 Kts. and then take off flaps a bit later to get down to my gear speed of 130 Kts. Then full flaps on final. The fast up flaps is OK on the ground and since you take off with partial flaps and put them up before 135 Kts. the fast transition is almost unnoticeable. I have forgotten to put them up until much later and faster and there is a very noticeable difference.
If for some reason you have to make a go around from full flaps you better be very careful and really watch how fast you let them up, but you have to be very fast at inching up the lever and back to center, not easy to get. I haven't had to do a go around from full flaps yet. In some cases you may want the fast retract speed. Bottom line, I like them that way now that I'm used to it.

Jim Hergert
N6XE, "An Sex Y" L4P