Personally the look turns me off. One thing I really like about the original TFP Wheeljack's alt mode is how it's based on the recent
Fenomenon Lancia Stratos, which is quite fitting as the original G1 Wheeljack was the old
Lancia Stratos Turbo. While the spikes and stuff may make BH Wheeljack look more "badass", I feel that it detracts from the "Robot in Disguise" element of the alt mode. I wouldn't mind it if the armour were detachable (as it appears to be on some other BH toys like Smokescreen)... but if it's a permanent part of the mould, then that's kind of a turn off for me.