14 трав. 2018, 00:5214.05.18
It's not really important.
From what I gather, Premium units (there are also subs):
1. can be obtained by VIP players (for now, s1 only),
2. for money only,
3. should have the same stats as the normal units,
4. but they do not: Premium Juggs seem weaker (but faster, at 24mph) than their normal counterparts.
The difference in speed is, IMO, irrelevant, as you can make up for it with a single 25% chart, which is much cheaper than those for-money-only Juggs.
Please note that I haven't had the chance to test them myself, but I saw some screenshots with their stats.