Personally I find indoor rubbish. The ball swings more than outside so is false, this thing about manipulating the ball is crap (IMO), as the better indoor guys are the worse ones outside! I find it doesn't help,judge a run as people run suicidal singles mainly just hoping the oppos miss the shy, how is that good,running?? Sod playing in a team that's xonstantly trying to,run me out in a 50 over game !
It doesn't reward cuts, pulls, leg glances and a lot of the time drives as they are either easily blocked or just hit the wall for one.
To sum up, while I think traditional club nets are even more pointless as that article describes, proper nets are focused and constructive. I'd take 30 mins of a quality net with the bat over an indoor game any day (even if scoring 25* etc). I can see why it's be better for bowlers playing onddors as the classic thing to happen at normal nets is bowlers suddenly Stsrt bowling shorter than they should because it goes through quicker and faster (as soon as I see it I just think 'tossed') and lose interest in the net.
Fielding indoors can be good in a way but again it's different to outdoor so it's hardly training the right things anyway
Just my 2p's worth, I'm sure some love indoor and think it's awesome. Funny how a club with 4 sat teams struggles to even get 6 out each week though if it is such a great game !