Xencall is the best tool for a small operation to use in bulk outbound cold calling.
Value for Money
Xen call really hits the sweet spot when you consider call volume per cost. It's not as slick as Connect and Sell or Monster Connect for outbound calling -- but it's FAR more affordable and can serve as a learning platform or low-budget solution. Frankly, with 5+ callers the predictive dialing tool should keep you very busy with no downtime. If you only have one or two callers it's less efficient becuase it won't dial while you are actually connected.
It has a lot of powerful features such as predictive dialing that will minimize your wait time and connect more calls faster (essentially dialing probabilistically in parallel and adjusting to hit a small abandonment rate like 2% or so). Manager features are strong and it's better than most small tools at supervising sales performance. Many features, such as auto call recording, are all standard in the basic offering.
It's a tad awkward for a solopreneur, but you can get there. Sign in as a Manager on one Chrome instance and Incognito as the agent on another. And you can manage yourself.
As far as I can tell the basic 'weakness' is its inability to drop supporting emails along with voicemails as part of its dispositions. It's really a fast cold calling solution, not a multi-touch outreach tool.