Hi Jessica,
If you’ve spent time in China I think you’ll find living in Chengdu pretty easy. I’m not sure where you lived previously, but Chengdu is laid back and people are friendly. Summertime is hot, but it’s a lot of fun, too.
Apartments are pretty easy to find, there are agencies everywhere which can help you find whatever you’re looking for. You can also look for apartments yourself online using sites like Soufun (these will require some Chinese language skills).
In general Chengdu is becoming more and more accessible to foreigners, so life here is getting easier. However some recent issues are things like traffic and the rising cost of living. Overall though, I’d say life in Chengdu is pretty easy and laid back for most foreigners.