There is a lot of discussion on the forum about Tanaka's, they did used to be well known for breaking especially the USP which has some very thin areas of plastic. The biggest problem was the round for some reason it really produced a lot of power and just put too much pressure on the plastic parts, the barrel in particular.
Tanaka fortunately over the last few yrs have made design changes to both round and guns and so now the new evolution models and rounds work well and dont break so they are a safe bet to buy. So yes the new model evo Glock should be fine and make sure its the new evo rounds you use and all should be well.
However as i tell everyone, these guns are made of plastic so if you use them it is possible something will break, thats the chance you take with plastic models but so far my evo Tanaka models are holding up well.