I rather like STV myself, or better yet, CPO-STV. At least in smaller constituencies like Blekinge, where there's usually no more than three MPs elected from the same party, I think being able to vote for individual people would be an improvement over the open-list system.
That system would indeed work well in, say, Blekinge, but in the County of Stockholm with 38 MPs elected it would result in a list of candidates that would make the Australian lists seem tiny - assuming that all the Riksdag parties would contest at least 20 seats except for the two major ones who'd contest them all, it would result in 196 candidates - and that's excluding the minor parties. Essentially, you'd get Australia and 99% of the voters just voting the preference order decided by the parties.
Speaking of the County of Stockholm, let's head west for the capital of Oregon.
Wait, what? No, this is not Salem, Oregon - it's the municipality of Salem, located just west of Botkyrka, which it split from in 1981 after being joined with it in the municipal reform of 1971. Unlike its Oregonian counterpart, which name springs from the Semitic words for "peace", the Swedish Salem was originally called Slæm - a dialectal portmanteau of slån (blackthorn) and hem (home/dwelling place) but the name was transformed into Salem sometime during the late Middle Ages, possibly thanks to Biblical inspiration.
Salem consists of two parts, its namesake and Rönninge, that might be more known than Salem to the average citizen of Stockholm thanks to having a train station trafficked by commuter trains. Salem itself is unfortunately mostly known for the Salem March, a neo-nazi demonstration held annually in the noughties after the murder of a young neo-nazi man in the area which has thankfully disappeared lately - unfortunately to be replaced with increased nazi activity elsewhere.
Politically, Salem is solidly blue - holding on even in 2002 when the Moderates' poor showing brought down several local governments - though not absurdly so unlike the northeastern upper-class strongholds. The existence of the Rönninge Party is almost pathetically predictable, though it formed as late as for the 2010 elections and is of the populist/NIMBYist variant rather than secessionist. After all, Salem has already seceded once.