My wife and I each own a TX22.  It is definitely one of the best plinkers on the market.  I would recommend that high-volume shooters purchase the Lakeline Stainless Steel Recoil Assembly.  Lakeline makes quality products, and the recoil assembly can be purchased for $32.99 on the Taurus website (even less during frequent sales).
I recommend replacing the recoil spring assembly because my TX22 slide cracked after about 2,000 rounds.  Taurus replaced the slide under warranty, but I had to pay shipping and wait 6 weeks for the repair.  The return shipping cost almost as much as the Lakeline assembly, which would most likely have prevented the damage in the first place.
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