Apart from CDC, I've been scouring the interwebs for some scouting info and people seem to think highly of Olli Juolevi.
In response to someone asking about Juolevi in a Miro Heiskanen thread a poster replies that Juolevi is "really solid, he's scored a couple of nice goals too."
Another poster has this to say:
"Miro Heiskanen and Olli Juolevi, so smooth and smart puckmoving Ds. Such a pleasure to watch these guys developing on every stride on the ice, especially for the keen and experienced eye of an older state man like me."
In the Juolevi thread, a once critical poster of Juolevi said this:
"I feel like I have to give some credit to the guy as I was very critical of him early on to his stint with TPS. He has improved a LOT. He always had the offense but he was a serious liability in their own zone. He's still not physical (probably never will be) but his positioning and effort have improved drastically. Not sure how he'll eventually adjust to NHL, but he doesn't look like a total bust to my eye anymore."
Further to that, one poster says that Juolevi has "been reliable enough defensively" and has "been able to utilize his strengths."
It will be a tough test for Juolevi as two of TPS Turku's top-4 defensemen (Tallinder and Heikkanen) are injured. With the amount of minutes he got last game, it looks like Juolevi will have to carry the load defensively this upcoming playoff round.
-EDIT-
Of further note, Cam Robinson of DobberProspects had this to say of Juolevi's Liiga season and current playoff success:
"Juolevi and his TPS teammates took down SaiPa in the quarter finals of Liiga action earlier this week. The smooth-skating rearguard had two goals in the six games while seeing games of 20-plus minutes. It has been a successful season for the teenaged rookie defender as he finished his regular season with 19 points (7+12) in 38 games - good enough to be the second most productive U20 defender in the league (behind Miro Heiskanen)."