I can't say one way or another if its a great, average, or terrible tool since it's hasn't been available for use. There's a few good tools out there, including the formula's devised by Josef Ka which seem to be the most cutting edge BB match and team planners. But, IMO, those are just tools to help formulate and outline a plan, not to use to decide the plan.
If this is a good tool, why hasn't this tool helped your club team to more success?
Let's take a look at my club team season by season
Season 2: i join on a lark 20 games into the season, have NO idea what im doing. get promoted via bot cleanup to d3, in spite of playing a total of 2 regular season games and being clueless
Season 3: i still dont really log in or do important things like consistently schedule friendlies till about half way through. make a number of errors but finish 4th. Give the eventual winner a ride in the playoffs but lose by 5
Season 4: i start figuring things out. Start building my team for meaningful success. Have a decent run, but no money to get big men, finish with a middling record
Season 5: The season before Full COurt PRess became nerfed. Once i figured out the increase in turnovers was worth almost any increase in shots made, I FCP virtually every game. After starting 1-3 i finish on a 20-2 run to win my division from the 3 seed in the much harder conference.
Season 6: First season in d2. I actually buy a big man. Still dont have a power forward of any value, but middling record = playoffs
Season 7: False dawn. I get very lucky with a # of buzzerbeating wins, finish 15-7, make the finals, take Thats WhatSheSaid to game 3, he has the better team and can match up with greer and ortega, i lose.
Season 8: I actually have what's close to the final version of the tool here. I am complacent abot improving my team, and finish 11-11, miss the playoffs narrowly (also helps that right at the end of the season I get married of all things)
Season 9: Disaster. Infatuated with Paul Wendon, i attempt to make my own mini wendon, hoping they become the wave of the future (for those who don't know WEndon is the canadian SF that has prolific in just about every skill). I buy some short 19 year old centers with some meaningful inside skills, and try to play them at guard and train as such. Epic Failure. Too much talent being mis-allocated = demotion.
Season 10: I realize my mistake, cut my losses (selling my most promising guy for a loss a full year later), keep training guards, adjust for the fact that my best outside players sometimes have to play SF, and roll through the season, calling my record 3 weeks in, hitting it on the head and sweeping through the playoffs.
Season 11: Back in d2. Have a brutal conference and a very tough division. I have a slightly below average salary but think I can make a real move. My team should hold up ok.
I basically made one huge mistake in Season 9, with a failed training strategy. It really set me back 2+ seasons, but that's ok. I learned from my mistake, have adjusted and will keep moving forward.