Overall not bad at all, the spreads on the ECN/PAMM accounts are very good on all pairs I've tried (15+).
The execution is good as well, usually below 600ms from my VPS with CNS.
Tick scalping is impossible with this broker though, they advertise not having stop levels, but they give very severe slippage and backticks during news events / big spikes in market activity, so don't run No1, SuperScalper or MDP here (also see NMi's statistics database for comparison).
The PAMM system RVDMarkets has is extremely good, probably the best I've seen. They also feature contests that are transparant and accessible. I just won my first contest last weekend and the payout was this monday before 7AM.
Finally they seem to have tick data! This is something very few brokers offer, it allows checking what actually happened. I haven't used a tick-logging script to compare actual received ticks vs database content though, but at least it seems like a step towards transparency that only a few other brokers offer (Dukascopy for example).
If you're looking for a place to invest in PAMM's this is a very good place :)
When you fall you learn, then you get up and you try again until you master it.