Yes, I have ran etrunk on it for a few days. I have about 350,000 hits on the voice channels from the time I have been monitoring (this includes the mysterious "Type F" transmission). The most active groups include 289 (02-041) with 40,968 hits, TGID 273, with 22,924 hits, and TGID 274 with 16,009 hits. There are several others that have a few hits also. I have included my spreadsheet below for your enjoyment.
ID_dec Usage Hits (dec)
0 Emerg. noted 104
32 Emerg. noted 6
256 Digital Noted 32
272 unknown format 1
273 Digital Noted 22924
274 Digital Noted 16009
275 unknown format 3
283 Digital Noted 1
288 unknown format 1
289 Digital Noted 40968
512 unknown format 1
528 Digital Noted 2
529 Digital Noted 2262
530 Digital Noted 143
531 Digital Noted 244
532 unknown format 2
534 unknown format 0
1085 Digital Noted 1
1089 unknown format 0
1090 unknown format 0
1091 unknown format 0
1301 unknown format 8
1302 unknown format 0
1335 unknown format 1
1336 unknown format 0
1552 unknown format 0
1553 Emerg. noted 74
1554 unknown format 5
1555 unknown format 45
1556 unknown format 0
1818 unknown format 0
1988 unknown format 1
1998 unknown format 0
1999 unknown format 1