Connectas are very different to Ergos but are also good carriers, it just depends on what you are looking for and what suits you. Connectas are much less structured, they have no padding on the waist and less on the shoulders than most other SSC's, they are generally more comfortable with the straps crossed on the back unlike the Ergo where you usually keep the straps rucksack style. They also fold up incredibly small so are easy to transport around.
Whereabouts are you based? Your best bet would be to get yourself to a sling library or have a consultation with a babywearing consultant to find what's best for you.