How's instant replay going?

Note: This was updated at 2:35 PM on Sat. 9/20/14.

Instant replay has seen its ups & downs over the past four-plus months with more ups than downs since the first month. The average time for a replay is 1:45 with some replays taking a hair over four mins. I'd like to see the avg. time to be under 90 secs with a max. time of 3:45, but I'll be willing to sacrifice 15-20 secs so that the call is right. I'm sure that the avg. tie will decrease as more umps become familiar with the new system. So far, a bit less than half of reviewed plays have been overturned with the rest standing pat via confirmation or inconclusive, so it is making an impact on the game. It's not, in the grand scheme of things, severely affecting pace of game (pick-off attempts, managers playing match-ups, meetings on the mound, hitters adjusting gloves, etc. are having more of an impact on pace/ rhythm - MLB acknowledges this & expects to make changes in off-season), but there have been situations in which long replays do/ can have noticeable impacts on pace-of-game. Here's a plausible scenario: a pitcher has retired 7 straight with 24 pitches, and the 2nd out of the inning is safe at 1B. The close play is challenged and the review takes three mins before being ruled inconclusive. The next batter sees 6 pitches and hits a two-run HR on pitch #7 of the AB. One can argue that, despite throwing a few pitches here & there, the long review (and possibly its result) upset the pitcher's momentum, resulting in a long AB & two ER on pitchers record. Now, this doesn't happen often but similar scenarios have occurred. So, far, the review process is smooth time-wise & sound results-wise except when it comes to enforcement of the new catching rule - 7.13: rulings are very inconsistent given the ambiguous wording of the rule. It's complicated by catchers still wanting to block the plate somewhat - "old habits die hard." I like the intent, but I would like to see this rule eliminated or reworded (during the off-season): initially place catchers' left feet just off the top-left corner of the plate. Any collisions after that should be chalked up to "part of the game." Update: MLB has told teams & umps that if the throw arrives well before the runner does, that is usually an out.

I personally would rather have replay than none at all. It has & continues to work in the NCAA, NFL, NHL, & NBA. Plus, I feared that things could turn violent off the field (fans vs. umps) if a blown call affected the result. For instance, Lord knows what could have happened to Jim Joyce if not for Galarraga's courageous public display of forgiveness in July 2010. No one is perfect, but MLB's replay procedures get a "B" from me.