Perhaps the most lasting memory I have of Kuching and the surrounding area is the flamboyance of the sunsets. Every evening you are treated to a nearly fantastical riot of vivid color, the kind of color that in a photograph you'd think had been faked.
Languid afternoons seated under an umbrella in a restaurant watching the rain pour down, the buildings on the opposite shore of the Sepang River nearly lost in a steamy mist, this is a place that is, above all, a visual and sensual experience.
Quick Tips:
Don't shy away from checking out the possibility of staying in 4 and 5 star properties because there are some amazing deals available. First, Sarawak is definitely off the usual tourist trail in SE Asia and second, because the Malaysian Ringgit has been pretty weak for some time. Take advantage of the deals for as long as you can.
When to Go
If you want to go to the nearby national parks, you need to be there in the dry season, so Northern Hemisphere summer would be best. My wife and I were there in January, in the middle of the rainy season, which made those visits impossible. That said, it's cooler, and it's very atmospheric...
Best Way To Get Around:
Getting There
There is only one viable option: you fly. No passenger ferries exist between E. Malaysia and either Peninsular Malaysia or Singapore. To save some money, if you happen to be setting out from Singapore, arrange a ticket on Malaysian Airlines from Johore Bahru, which is just across the causeway. There's a good 30% difference for an essentially identical distance.
Malaysian Airlines
This may sound like I'm in the pay of Malaysian, but this is one of the best airlines I've ever been on! Even on the short 75-minute flight from Johore Bahru, we had a full, hot meal. The service on their 777 from Dubai to Kuala Lumpur was nothing sort of superb, including 17 channels of entertainment and coat hooks on the seat backs in front... not to mention more legroom than you'll ever find on a US carrier in economy.
In Kuching
City buses exist, but they don't seem to be very frequent and they're not air-conditioned, so taxis are a far better choice. And they're no more expensive for most distances than an equivalent bus ticket in Europe or North America would be.