The RJ 45 connector can be processed very well and with the threading aid is the "Insert" no problem. Only the buckling cases could be better, these are a bit lawede. Do not sit tight right and the lever for unlocking the plug is too far for these cases out. If you want to push the cases properly at the plug, lock the lever and prevents the fit.
Generally, there are better and cheaper deals when time is scarce and all claims are not too high, you can safely take up modular plugs of the company. Wentronic.