I also wondered why it’s needed. Looks like a usual vpn that is called vps for making it look more fancier. But, with some experience, you start to reconsider some features of main importance.
Vps is especially important, in order of execution. In case, there is a network disruption, not all countries have access to fast Internet connection, your order might be reflected inaccurately, in a fast environment of trading, it may cost you some cash. That’s why I think it’s needed for more stable and reliable trading. As far as I know, squared financial uses the industry leader vps supplier- forexvps.
All is up to you and your preferences, both are assets and timeframes that you prefer trading on. The choice is limited to two options: variable spread acc without commissions and zero spread, but with commission. Nothing extraordinary about this…
The first one is more favourable for different kinds of traders, especially those who keep their positions for a long time, but note that swaps are applied for this, even though they have a swap-Islamic account option. While the second one, is for more experienced guys, who trade with more volume and usually intraday. You decide which category you're in. For the beginners, the first option is quite good, imho.
In general, like elsewhere, demo and real one. Being more precise, the choice depends on the deposit amount:
1) Square pro, with spreads from 1.2 and leverage x1000
2) Square elite, bigger min deposit, 0 spreads, 5bucks commission, leverage is up to x500
Beginners might enjoy the first one, with no min deposit requirement, elite is more for experienced guys, but if you got at least $500, go ahead, in some cases, like crypto trading, those accounts are much more favourable.