The withdrawal of service 701 and introduction of the new low-floor bus fleet for the replacement Aberystwyth to Cardiff (X40) service sparked concerns and complaints about the suitability of a service bus for the four-hour journey. There was no on-board toilet, which did not make an ideal situation for such a distance. Toilet breaks (even though there are limited facilities along the rural route) would be frowned upon as they would interfere with the timetable. The X40 also did not accept concessionary travel passes for travel over the section south of Carmarthen. However some of the complaints, particularly those related to luggage space, may have been the result of Arriva Buses Wales using buses on Aberystwyth to Cardiff services other than the two specially equipped Optare Tempos ordered with Aberystwyth to Cardiff services in mind.