We usually do a one-time copy of kix32.exe to the workstation first, thats gets it on the workstation then from there on in, its faster than stink ... plus dont forget, two other features were added that aren't so "in-your-face" noticable, most notibly:

Group Caching
Tokenized Scripts

Both these new features makes Kixtart the logon scripting language of choice ... if your concerned with size versus features versus performance, suggest you stick with BAT files for your scripts ... you know the old saying as well as I do, no such thing as a free lunch.