Stable it is not really. Did the tree supplemented with two Trixie Liegemudeln (a left at the second last board and a right under the last record). The cubicles are very firm, however, already shaking the tree if the two very from one to the other tray back and forth chasing. I think every time: direct tilts me to the tree.
Conclusion: Better a higher quality tree for more money to buy than this. Who buys cheap, buys twice!