Just been running the "A" together with some 121's, 141/181's, 071's and some 201's and they all look very well together. The "A"'s being the new kids on the block but to my eyes the others hold their own with the "A" class locos. Fair enough the "A" class have rotating axle box covers while the others don't. Only for the fact I new about the rotating axles boxes before buying the "A" class locos I probably would not have noticed them. So rotating axles boxes are not a deal breaker for me. The "A" do not have sprung buffers whereas the others do. Unless you touch the buffers on the Murphy's you would not know that they were spring loaded so again this feature is not a deal breaker for me. None of the locos have opening doors which does not bother me or it would not be a factor in making a decision to purchase a particular loco. As you can guess I am happy with the 141/181 locos as is. I'd like to say that if more were released I'd buy some but taking into account how things are I cannot say that. Any loco produced from now on will cost a lot more due to transport charges on their own let alone the cost of materials and getting a slot in Chinese factories. The price of a loco is a fair chunk of the household budget and as costs rise it will be an even bigger chunk of it in the future. I would be very surprised if any manufacturer will be able to stand by projected prices for future releases.
Anyway to cut it short I am as happy with the 141/181 class as I am with more recent stuff.