I guess so. But, mate, it doesn't depend on the broker.
Indeed, the broker provides you with the infrastructure, those indispensable tools that you must utilize to succeed, but a big share of success depends on your own skills, ability to analyze the market and experience.

Ainvesting broker offers a lot of instruments that include many assets from currency pairs to bonds, nice leverage size and quite fair pricing. Plus some accounts to choose from.
If we speak about whether the company is suitable for trading with long-term prospects, then - exactly.
But I am not aware of your skill level, so can't specify on that.